Low-Carb Crustless Spinach and Feta Quiche

A warm slice of crustless spinach and feta quiche is the kind of food that fills a kitchen with an inviting, savory aroma — the tang of salty feta rising on top of gently browned egg, while bright green spinach softens into a silky ribbon throughout. The first forkful offers a delicate custard texture with little pockets of crumbly cheese and the faint sweetness of caramelized edges; each bite is both comforting and refreshingly light.

This quiche is perfect for cozy weekend breakfasts, make-ahead brunches, or a quick protein-packed dinner on busy nights. It’s also a welcome low-carb option during festive seasons when heavier fare abounds — it tastes celebratory without feeling heavy. If you love baked dishes with Mediterranean flavors, you may also enjoy the playful baked-feta recipes that pair cheese and greens in similar ways, such as this baked feta eggs with tomatoes and spinach.

At a Glance

Prep Time: 10 minutes
Cook Time: 35–40 minutes
Total Time: 45–50 minutes (including a brief cool-down)
Servings: 6 (slice into 6 wedges)
Difficulty Level: Easy — great for beginner cooks

Nutrition Highlights

Per serving (assuming 6 servings total). Estimates calculated using USDA FoodData Central values for raw ingredients and rounded to practical numbers.

Calories: ~280 kcal
Protein: ~11 g
Total Carbohydrates: ~3.5 g
Fat: ~25 g
Fiber: < 1 g
Sodium: variable (depends on feta and added salt)

Notes: This crustless quiche is low in carbohydrates and higher in fat and protein, making it suitable for low-carb or moderate ketogenic meal plans when paired with low-carb sides. Nutrition estimates are based on ingredients: 6 large eggs, 1 cup heavy cream, 1 cup crumbled feta, 2 cups fresh spinach, and a small amount of onion and seasonings (USDA FoodData Central). For personalized dietary guidance consult reliable sources such as the Mayo Clinic or your healthcare provider.

Why You’ll Love It

Flavor & Texture Highlights: The salty tang of feta balances the rich custard of the eggs and cream, while spinach adds freshness and color. The texture is creamy yet sliceable — a perfect contrast of silky custard and slightly crisp top.
Ease & Speed: Minimal chopping and one mixing bowl make this an efficient bake — hands-off once it’s in the oven.
Social & Seasonal Appeal: It fits a breakfast-for-dinner vibe, is elegant enough for brunch guests, and keeps well for weekday meals. It’s a dish that brings people to the table without fuss.

Step-by-Step Instructions

Ingredients:

2 cups fresh spinach, chopped (about 60–80 g)
1 cup feta cheese, crumbled (about 150 g)
6 large eggs
1 cup heavy cream (240 ml) — or use whole milk for a lighter option (see substitutions)
1/4 cup onion, finely diced (optional)
1/4 teaspoon garlic powder (optional)
Salt and black pepper to taste (note: feta is salty; taste before adding much salt)
Butter or olive oil for greasing the pan

Optional ingredients and substitutions:

Use 1 cup whole milk instead of heavy cream for lower fat and fewer calories (carbs will remain low).
Substitute Greek yogurt (¾ cup) for part of the cream for tang and protein (reduce cream proportion accordingly).
Add 1/2 cup sun-dried tomatoes or 1/2 cup sautéed mushrooms for variety (will change carbs slightly).
For a dairy-free or vegan approach, see the variations section below.

Instructions:

Preheat the oven to 350°F (175°C). Grease a 9-inch pie dish or quiche pan with butter or olive oil.
In a large mixing bowl, whisk together the 6 eggs and 1 cup heavy cream until smooth and slightly frothy.
Stir in the chopped spinach, crumbled feta, diced onion (if using), garlic powder (if using), and a few grinds of black pepper. Taste — adjust salt only if necessary.
Pour the mixture into the prepared pie dish and smooth the top.
Bake for 35–40 minutes, or until the center is set (a knife inserted should come out mostly clean) and the top is lightly golden. If the top browns too quickly, tent with foil after about 25 minutes.
Remove from the oven and let cool for 10–15 minutes before slicing to help it firm up for clean wedges. Serve warm or at room temperature.

Practical tips:

Avoid overmixing once the spinach and feta are added — gentle folding keeps pockets of cheese intact for texture contrast.
Check doneness at 30–35 minutes to avoid overbaking; the quiche continues to set as it cools.
If you want a firmer texture (for picnics or portable slices), bake an extra 5–8 minutes.

For another take on combining baked feta and greens, you can compare technique and flavor inspiration with this alternate version: baked feta with tomatoes and spinach variant.

Best Pairings

Serve with a crisp green salad dressed in lemon vinaigrette for brightness.
A spoonful of herbed Greek yogurt or tzatziki on the side complements the feta’s tang.
Pair with a warm cup of coffee or a light white wine (Sauvignon Blanc) for brunch.
For brunch spreads, offer crusty low-carb bread, roasted cherry tomatoes, or a simple fruit salad for contrast.

Keeping it Fresh

Room temperature: Not recommended beyond 2 hours (per safe food-handling guidelines).
Refrigeration: Store covered in the fridge for up to 4 days. Reheat gently in a 325°F oven or microwave until warmed through.
Freezer: Wrap tightly (individual slices or whole) and freeze for up to 2 months. Thaw overnight in the fridge and reheat in the oven to restore texture.

Chef’s Advice

Use full-fat feta for creamier results and better melt pockets; pack the feta lightly when measuring to avoid over-salting.
Fresh spinach wilts dramatically — chop it coarsely if you want visible leaves, or finely if you want a uniformly green custard.
For an evenly set quiche, bring eggs and cream to room temperature before whisking; this prevents temperature shock that can cause curdling.
If you prefer a slightly firmer, sliceable quiche for travel, reduce cream to 3/4 cup and add one extra egg white.

Creative Twists

Mediterranean: Add 1/2 cup chopped kalamata olives and 1 teaspoon dried oregano; swap thyme for a different aromatic profile.
Tomato & Herb: Fold in 1/2 cup halved cherry tomatoes and 2 tablespoons chopped fresh basil for a summer-forward version.
Vegetarian Protein Boost: Stir in 1/2 cup crumbled firm tofu or 1/3 cup cooked quinoa to increase protein and change texture.
Vegan (crustless): Replace eggs with a chickpea-flour “batter” (1 1/2 cups chickpea flour + 2 cups water, blended with oil and turmeric) and substitute dairy feta with a nut-based or store-bought vegan feta; bake until firm and golden. (Baking time may vary.)

Frequently Asked Questions

Q: Can I make this with milk instead of cream?
A: Yes — use whole milk for fewer calories and a slightly less rich texture. For a creamier yet lighter option, use a mix of half milk and half Greek yogurt.

Q: How can I prevent the quiche from being watery?
A: Squeeze excess moisture from thawed frozen spinach, and avoid overcrowding with watery vegetables (like fresh tomatoes) unless pre-roasted. Bake until set and allow a short rest before slicing.

Q: Is this quiche suitable for a low-carb diet?
A: Yes — with roughly 3–4 g carbs per serving it’s low in carbohydrates, especially when made without high-carb add-ins. Check ingredient labels (feta, flavored dairy) as some prepared items can add carbs.

Q: Can I double the recipe for a larger crowd?
A: Yes. Double ingredients and bake in a larger dish (or two pans). You may need to increase bake time slightly — check doneness with a skewer or knife.

Q: How should I reheat slices without drying them out?
A: Reheat gently at 300–325°F in the oven for 10–15 minutes, covered with foil if worried about browning; microwaving at 50–70% power in short bursts works for convenience.

Conclusion

Give this low-carb crustless spinach and feta quiche a try next time you want an elegant yet simple dish that keeps well and travels nicely — it’s a reliable favorite for breakfasts, brunches, or a speedy weeknight plate. For more crustless-quiche inspiration and variations, check out this helpful Crustless Spinach Quiche (Low-Carb and Keto) and see how tomatoes and herbs can change the profile in Kylee Cooks’ Crustless Spinach Quiche with Tomatoes and Feta.

If you make it, I’d love to hear how you customized the flavors — share your photos and tips so we can build a community of great home cooks around simple, nourishing recipes.