Easy Spinach, Sun-Dried Tomato And Feta Crustless Quiche For A High-Protein Breakfast

Description

This Spinach, Sun-Dried Tomato and Feta Crustless Quiche combines fluffy baked eggs, tender spinach, tangy feta cheese, and intensely flavorful sun-dried tomatoes in one delicious dish. Without a pastry crust, the quiche has a soft, custardy center and lightly golden edges, letting the Mediterranean-inspired ingredients shine in every bite.

Packed with protein from eggs, feta, and Greek yogurt, this crustless quiche is a satisfying choice for anyone looking for high-protein, low-carb recipes. It is easy to prepare, naturally grain-free, and versatile enough for breakfast, brunch, lunch, or a make-ahead meal. Enjoy it warm from the oven or chilled straight from the refrigerator.

Short 3-Line Recipe Description

This crustless quiche combines fluffy eggs, fresh spinach, tangy feta, and savory sun-dried tomatoes.
It is a protein-rich, low-carb meal with a creamy center and delicious Mediterranean-inspired flavor.
Serve it for breakfast, brunch, or meal prep for an easy and satisfying dish.

Can Spinach Sun-Dried Tomato Feta Crustless Quiche Support Weight Loss Goals?

Yes, this crustless quiche can fit into a weight-management eating plan when the serving size and ingredients align with your nutritional needs. Eggs provide high-quality protein, while feta and Greek yogurt contribute additional protein and flavor. Spinach adds volume, fiber, and micronutrients without contributing many calories or carbohydrates.

Leaving out the traditional pastry crust also reduces the carbohydrate content compared with many conventional quiche recipes. For a lighter version, use reduced-fat feta, plain nonfat Greek yogurt, and sun-dried tomatoes packed in water rather than oil.

The recipe can be a satisfying breakfast or lunch, but the overall calorie content still depends on the cheese, eggs, cooking oil, and portion sizes. Weight management depends on your overall eating habits and energy balance rather than any individual recipe.

Does Spinach Sun-Dried Tomato Feta Crustless Quiche Fit a High-Protein Lifestyle?

Yes, this crustless quiche fits a high-protein lifestyle because eggs provide a substantial protein foundation, while feta and Greek yogurt contribute additional protein.
Spinach and sun-dried tomatoes add flavor, color, and nutrients without requiring a flour-based crust.
Each serving provides approximately 17–19 grams of protein and around 5–7 grams of net carbohydrates, depending on the ingredients used.
Its low-carb profile makes it suitable for many carbohydrate-conscious meal plans, including some ketogenic diets.
For more protein, add extra egg whites or serve the quiche with a side of plain Greek yogurt.

My Personal Experience

A soft, custardy center: The eggs and Greek yogurt create a tender texture that feels rich without needing a pastry crust.
Baking gently helps the center set while keeping the edges lightly golden and delicious.
A wonderful Mediterranean flavor combination: Tangy feta complements the concentrated sweetness of sun-dried tomatoes, while spinach adds a fresh, earthy taste.
A little black pepper and oregano bring the ingredients together without overpowering them.
A satisfying protein-rich breakfast: Eggs form the base of this dish, while feta and Greek yogurt contribute extra protein and creaminess.
Each slice makes a convenient breakfast or lunch that can be paired with fresh vegetables.
Easy meal preparation: The quiche can be baked in advance, divided into slices, and refrigerated for quick meals throughout the week.
Reheating a slice takes only a few minutes, making busy mornings easier.
Flexible and easy to customize: You can add mushrooms, replace some of the feta with cottage cheese, or increase the spinach.
These adjustments let you adapt the recipe to your taste while maintaining its crustless, low-carb style.

Perfect For

High-protein breakfasts: Eggs, feta, and Greek yogurt make this quiche a practical way to add protein to your morning.
Low-carb recipes: The absence of a pastry crust keeps the carbohydrate content relatively low.
Keto diet plans: The recipe may fit a ketogenic eating plan when ingredient labels and individual carbohydrate limits are considered.
Healthy brunch menus: Its colorful spinach and tomato filling looks attractive when served in neat slices.
Meal-prep lunches: Bake it ahead, portion it, and refrigerate slices for convenient meals.
High-protein snacks: A small chilled slice can serve as a savory snack between meals.
Vegetarian meals: The recipe contains eggs and dairy but no meat, making it suitable for many lacto-ovo vegetarian diets.
Light dinners: Pair a slice with a cucumber salad or roasted vegetables for a simple, balanced meal.

This is primarily a savory breakfast, brunch, or lunch recipe rather than a high-protein dessert.

Why You’ll Love This Recipe

No crust required: Skipping the pastry makes preparation simpler and reduces the carbohydrate content.
The egg mixture still creates a satisfying, sliceable quiche with lightly browned edges.
Packed with Mediterranean-inspired flavor: Feta brings salty tang, sun-dried tomatoes add concentrated sweetness, and spinach balances the richness.
Together, these ingredients create a flavorful dish without complicated seasonings.
A useful source of protein: Eggs, Greek yogurt, and feta all contribute protein to each serving.
Adding extra egg whites can increase protein without substantially increasing fat.
Perfect for meal prep: The quiche can be sliced and stored in individual containers after cooling.
It reheats easily for a quick breakfast or lunch.
Easy to customize: Add herbs, mushrooms, or a little extra spinach to personalize the filling.
The basic egg mixture works well with many low-carb vegetables and cheeses.
Delicious hot or cold: Fresh from the oven, the quiche has a warm, tender center.
Chilled slices become firmer and are convenient for packed lunches or quick snacks.

Common Mistakes to Avoid

Using wet spinach: Excess moisture can make the quiche watery and prevent it from setting properly. Cook fresh spinach briefly and squeeze out excess liquid, or thaw and thoroughly drain frozen spinach.
Adding oil-packed tomatoes without draining them: Excess oil can make the egg mixture greasy. Drain the sun-dried tomatoes and pat them dry before chopping.
Overbaking the eggs: Baking for too long can create a rubbery texture and cause moisture to separate. Remove the quiche when the center is just set and no longer visibly liquid.
Slicing it too soon: Cutting immediately after baking can cause the slices to fall apart. Let the quiche rest for 5–10 minutes so the eggs can firm up before slicing.

Required Equipment

9-inch (23 cm) pie dish — provides an even baking surface and creates a quiche that is easy to slice.
Mixing bowl — gives enough space to whisk the eggs, yogurt, and seasonings together.
Whisk — combines the eggs and yogurt into a smooth mixture for an even custard.
Sharp knife and cutting board — make chopping spinach and sun-dried tomatoes quick and consistent.
Non-stick skillet — helps wilt spinach and release excess moisture before baking.
Measuring cups and spoons — keep ingredient proportions consistent and improve nutrition estimates.
Silicone spatula — folds the filling ingredients together without damaging the bowl.
Food thermometer — helps check that the egg-based dish reaches a safe internal temperature.

Storage Instructions

Refrigerator: Allow the quiche to cool slightly, then refrigerate it within two hours of cooking. Store slices in shallow, airtight containers at 40°F (4°C) or below and consume within 3–4 days.

Freezer: Cut the completely cooled quiche into individual portions and wrap each slice in freezer-safe wrap or place it in an airtight freezer container. Freeze for up to 2–3 months for best quality. Separate the slices with parchment paper to make them easier to remove individually.

Reheating: Reheat a refrigerated slice in the oven at 325°F (165°C) for approximately 10–15 minutes, or microwave it in 30-second intervals until heated through. The center should reach 165°F (74°C). Avoid overheating, which can make the eggs rubbery.

High-protein meal-prep tip: Portion the quiche after cooling so each container has a consistent serving. The protein remains part of the food during storage, although overall texture and moisture may change.

Recipe Details

Preparation Time: 15 minutes
Cooking Time: 30–35 minutes
Total Time: 45–50 minutes
Servings: 6
Best Season for This Recipe: All-season
Total Calories per Serving: Approximately 190 calories

Calories and nutrition figures are approximate and depend on the size of the eggs, type of feta, Greek yogurt brand, and whether the sun-dried tomatoes are packed in oil.

Ingredients

Makes 6 servings.

Main Ingredients

6 large eggs
1 cup (240 g) plain nonfat Greek yogurt
1 cup (30 g) fresh spinach, roughly chopped
1/2 cup (75 g) sun-dried tomatoes, drained and chopped
3/4 cup (85 g) crumbled feta cheese
1/4 cup (25 g) finely grated Parmesan cheese, optional
1/4 cup (40 g) finely diced onion
1 teaspoon olive oil
1/2 teaspoon dried oregano
1/4 teaspoon garlic powder
1/4 teaspoon freshly ground black pepper
A small pinch of salt, or to taste

Ingredient Notes

Eggs: Large eggs create the structure and custardy texture of the quiche.
Greek yogurt: Plain nonfat Greek yogurt adds creaminess and protein without requiring heavy cream.
Spinach: Use fresh spinach and remove excess moisture after wilting. If using frozen spinach, thaw and squeeze it thoroughly.
Sun-dried tomatoes: Oil-packed tomatoes work well when drained and patted dry. Tomatoes packed without oil can also be used.
Feta: Feta is naturally salty, so taste the mixture before adding extra salt.
Parmesan: Optional for a more savory flavor, but it adds extra sodium and calories.
Olive oil: A small amount helps soften the onion and spinach; use cooking spray if you prefer to reduce the added fat.

Directions

Step 1: Preheat the oven and prepare the dish — 5 minutes

Preheat the oven to 350°F (175°C). Lightly grease a 9-inch (23 cm) pie dish with olive oil or cooking spray.

Set the dish aside while you prepare the filling. Greasing the dish helps prevent sticking and makes serving easier.

Step 2: Prepare the vegetables — 4–5 minutes

Heat the olive oil in a non-stick skillet over medium heat. Add the diced onion and cook for 2–3 minutes, stirring until it begins to soften.

Add the chopped spinach and cook for another 1–2 minutes, just until wilted. Transfer the vegetables to a plate and allow excess steam to escape.

If liquid collects in the skillet, drain it before proceeding.

High-protein tip: Removing excess vegetable moisture helps the egg mixture set properly without requiring extra flour or other binding ingredients.

Step 3: Whisk the egg mixture — 2–3 minutes

In a large mixing bowl, whisk the eggs and Greek yogurt until smooth. Add the oregano, garlic powder, black pepper, and a small pinch of salt.

Continue whisking until the mixture looks uniform, with no large streaks of yogurt or egg white.

Step 4: Add the filling ingredients — 2 minutes

Fold the cooked spinach and onion, chopped sun-dried tomatoes, crumbled feta, and optional Parmesan into the egg mixture.

Stir gently so the ingredients are distributed throughout the mixture rather than collecting at the bottom. Taste a tiny amount of the mixture only if it contains no raw egg; otherwise, rely on the saltiness of the cheeses when adjusting seasoning.

Step 5: Bake the quiche — 30–35 minutes

Pour the mixture into the prepared pie dish and spread the filling evenly.

Bake on the middle oven rack at 350°F (175°C) for 30–35 minutes, checking near the end of the cooking time.

The edges should look lightly golden, and the center should be set with only a slight wobble. A food thermometer inserted into the center should read 160°F (71°C).

If the top browns too quickly, loosely cover it with foil for the remaining baking time.

Step 6: Rest and serve — 5–10 minutes

Remove the quiche from the oven and let it rest for 5–10 minutes before slicing.

The center will firm up slightly as it rests, making it easier to cut clean slices. Serve warm with a fresh salad, or let it cool before portioning for meal prep.

Extra-protein option: Replace one or two whole eggs with additional egg whites if you want to increase the protein-to-fat ratio. The final texture and nutrition will vary slightly.

Nutrition Facts (Per Serving – Approximate)

Based on six servings using six large eggs, nonfat Greek yogurt, feta, spinach, sun-dried tomatoes, and a small amount of olive oil, without the optional Parmesan.

Calories: 190 kcal
Total Fat: 11 g
Cholesterol: 200 mg
Sodium: 430 mg
Potassium: 350 mg
Total Carbohydrates: 7 g
Fiber: 1.5 g
Net Carbs: 5.5 g
Sugars: 4 g
Protein: 17 g
Calcium: 170 mg

Nutrition values are estimates, not laboratory-tested results. Actual values may vary with ingredient brands, egg sizes, cheese quantities, and the oil content of the tomatoes. Net carbohydrates are calculated by subtracting fiber from total carbohydrates.

Notes

Storage: Refrigerate leftovers within two hours and consume within 3–4 days. Freeze individual slices for up to 2–3 months for best quality.
Reheating: Warm in the oven at 325°F (165°C) or microwave in short intervals until the center reaches 165°F (74°C).
Allergy notes: This recipe contains eggs and dairy. Check packaged sun-dried tomatoes and seasonings for additional allergens or cross-contact warnings.
Flavor boosts: Add fresh basil, chopped parsley, a little lemon zest, or extra black pepper for a brighter Mediterranean flavor.
Extra protein: Increase the Greek yogurt slightly or incorporate additional egg whites while keeping the mixture thick enough to bake properly.
Lower-sodium option: Choose reduced-sodium feta, omit added salt, and check the sodium level of any packaged ingredients.
Texture tip: Thoroughly drain the spinach and sun-dried tomatoes before mixing them into the eggs.
Serving suggestion: Pair a slice with cucumber salad, roasted zucchini, or sautéed mushrooms for a satisfying low-carb meal.

Frequently Asked Questions

1. Is spinach sun-dried tomato feta crustless quiche keto-friendly?

Yes, it can fit many ketogenic meal plans because it contains approximately 5.5 g of net carbohydrates per serving under the stated ingredient assumptions.

2. Can I use frozen spinach instead of fresh spinach?

Yes, thaw the frozen spinach completely, squeeze out excess moisture, and measure it after draining to prevent a watery quiche.

3. How can I make this crustless quiche higher in protein?

Add egg whites, use a higher-protein Greek yogurt, or serve the quiche with an additional protein-rich side.

4. Can I make the quiche ahead of time?

Yes, bake it a day or two ahead, refrigerate it in an airtight container, and reheat individual slices when needed.

5. Why did my crustless quiche turn watery?

Excess moisture from spinach or sun-dried tomatoes, or underbaking the egg mixture, can make the finished quiche watery.

6. Can I freeze spinach feta crustless quiche?

Yes, freeze cooled individual slices in airtight freezer-safe packaging for up to 2–3 months for best quality, then thaw and reheat thoroughly.