Crustless Spinach Quiche Recipe

I love finding recipes that feel fancy but take hardly any effort on a busy morning. This crustless spinach quiche recipe is exactly that kind of dish, delivering on a creamy, high-protein experience with minimal fuss. We’ve taken the classic favorite and added a vibrant Mediterranean twist, swirling in salty feta cheese and bright sun-dried tomatoes. It’s fast enough for busy mornings and impressive enough for guests, proving that simplicity doesn’t mean sacrificing flavor. The best part: no fussing with pie crusts, making this version faster to prepare and perfect for family meal prepping. This recipe guarantees a fluffy, flavorful quiche every time, even for beginner home cooks.

Ingredients for This Mediterranean Crustless Spinach Quiche

• 15 ml (1 tablespoon) extra virgin olive oil: Used for sautéing the aromatics and building the flavor base. Choose a high-quality oil for better results.
• 1 small yellow onion, finely diced: Provides a sweet, savory foundation for the filling. Dicing finely ensures it cooks quickly and incorporates smoothly into the quiche texture.
• 2 cloves garlic, minced: Adds depth and aroma to the base flavor profile. Add during the last minute of cooking the onion to prevent burning.
• 300 g (10 oz) fresh spinach, stems removed, roughly chopped: The key vegetable component; fresh spinach wilts down significantly. If using frozen spinach, thaw completely and squeeze dry before use to avoid excess moisture.
• 6 large eggs: The primary ingredient that forms the custard base. Large eggs provide consistent volume and structure; use room temperature eggs for fluffier results.
• 240 ml (1 cup) full-fat milk or half-and-half: Adds richness and creaminess to the egg custard. Half-and-half will yield a slightly richer texture than standard milk. (A common kitchen swap is heavy cream for extra richness, or even Greek yogurt thinned with water.)
• 5 ml (1 teaspoon) fine sea salt: Seasoning to balance the flavors in the quiche batter. Adjust based on the natural saltiness of the feta and sun-dried tomatoes.
• 2 ml (½ teaspoon) freshly ground black pepper: Provides a sharp, aromatic finish to the overall flavor profile.
• 1 ml (¼ teaspoon) freshly grated nutmeg (optional): A traditional, subtle spice that enhances the savory notes of the egg and spinach.
• 60 g (½ cup) shredded Monterey Jack or Gruyère cheese: Melts smoothly, adding a creamy texture and nutty flavor to the base custard. (Monterey Jack provides a mild flavor, while Gruyère adds more complexity. Cheddar cheese or provolone work well too, depending on what I have available in the fridge for easy dinner ideas.)
• 60 g (½ cup) oil-packed sun-dried tomatoes, drained and finely chopped (reserve 5 ml / 1 teaspoon of the oil for garnish): Provides a concentrated sweet and tangy Mediterranean flavor. Draining excess oil prevents the quiche from becoming greasy, but reserving some oil adds a perfect finish.
• 90 g (¾ cup) crumbled feta cheese: Adds pockets of salty, briny flavor and a creamy texture. Choose high-quality feta, preferably from sheep’s milk, for better flavor.
• 2 ml (½ teaspoon) dried oregano: A classic Mediterranean herb that complements the feta and tomato. Dried oregano provides a concentrated flavor; adjust to taste.
• 5 ml (1 teaspoon) fresh oregano or parsley, finely chopped, for garnish: Adds freshness, color, and a final aromatic touch. Use fresh herbs just before serving for best results.

Step-by-Step Instructions

1. Prep the Oven and Pan: Preheat your oven to 190°C (375°F). Lightly grease a 23 cm (9-inch) pie dish or similar oven-safe baking dish to prevent sticking. Ensure the dish is completely coated, especially for a crustless quiche, as it will stick easily if not properly prepped.
2. Sauté Aromatics: In a large skillet, heat 1 tablespoon of olive oil over medium heat. Add the finely diced onion and cook, stirring occasionally, until softened and translucent, about 5-7 minutes. Add the minced garlic and cook for another minute until fragrant; be careful not to let the garlic burn.
3. Wilt and Squeeze the Spinach: Add the roughly chopped fresh spinach to the skillet with the onion and garlic mixture. Cook, stirring constantly, until the spinach is completely wilted and reduced in volume. Transfer the hot spinach mixture to a fine-mesh sieve and press firmly with the back of a spoon to remove as much liquid as possible, then roughly chop the squeezed spinach. I always make sure to squeeze the spinach really dry for this crustless spinach quiche recipe; otherwise, the whole thing turns out spongy and wet. It’s the most critical step for a good texture.
4. Prepare the Egg Custard Base: In a large bowl, whisk together the 6 large eggs, 1 cup of full-fat milk or half-and-half, salt, pepper, and nutmeg (if using) until well combined and slightly frothy. Stir in the shredded Monterey Jack or Gruyère cheese and the cooked, squeezed spinach. Ensure all ingredients are thoroughly mixed to create an even custard base.
5. Layer the Quiche: Pour exactly half of the egg and spinach mixture into the prepared pie dish, spreading it evenly across the bottom. In a separate small bowl, combine the finely chopped sun-dried tomatoes, crumbled feta cheese, and dried oregano; mix gently to combine. Spoon dollops of the sun-dried tomato and feta mixture evenly over the egg mixture in the pie dish, leaving spaces between each dollop.
6. Swirl and Bake: Pour the remaining egg and spinach mixture over the top, covering the tomato-feta dollops. Using a small knife or skewer, gently swirl the tomato-feta mixture into the egg batter a few times, creating visible ribbons and pockets of color without fully mixing them in; this creates a beautiful layered effect for the final crustless spinach quiche. Bake for 35-45 minutes, or until the quiche is set in the center and a knife inserted near the center comes out clean. If the quiche top browns too quickly before the center sets, cover loosely with foil for the remaining bake time.
7. Rest and Serve: Remove the quiche from the oven and let it rest on a wire rack for 10-15 minutes before slicing. This allows the custard to set further, resulting in cleaner, more defined cuts when serving this high-protein meal. Slice into generous wedges and arrange on plates.
8. Garnish: Drizzle a small amount of the reserved sun-dried tomato oil over the top of each slice, allowing it to subtly sheen and pool. Finish with a light sprinkle of fresh chopped oregano or parsley for a vibrant green contrast and fresh aroma before serving warm or at room temperature.

Make-Ahead Tips and Meal Prep Strategy

This crustless spinach quiche recipe is perfect for meal prep. Prepare the entire quiche on Sunday and store it in the refrigerator for quick breakfasts or lunches. Reheat individual slices in the microwave for 60 seconds or in a low oven (150°C/300°F) for 10 minutes for a quick, high-protein start to your weekday.

You can also prep the filling in advance. Sauté the onion and spinach mixture (Step 3) up to 2 days ahead of time. Store it in an airtight container in the fridge, then combine it with the egg custard right before baking to save time during busy mornings.

To freeze, fully cool the baked quiche. Wrap tightly in plastic wrap, then aluminum foil, and store in a freezer-safe bag for up to 3 months. Thaw overnight in the refrigerator before reheating.

Flavor Variations and Swaps

The base for this crustless spinach quiche recipe is incredibly versatile. Here are a few ways to change up the flavor profile and make it your own.

• Change up the cheese: Substitute the feta and sun-dried tomatoes with goat cheese and roasted red peppers for a different Mediterranean profile, or try cheddar cheese and chives for a more traditional American twist.
• Add different vegetables: Incorporate other quick-cooking vegetables like mushrooms, bell peppers, or artichoke hearts. Sauté them alongside the onions and spinach to ensure they are fully cooked and excess moisture is removed before baking.
• Spice things up: Add a pinch of red pepper flakes to the egg mixture or sprinkle some on top before baking for a touch of heat.

Serving Suggestions for a Complete Meal

This easy, healthy crustless spinach quiche recipe works for breakfast, brunch, or a light dinner. Pair a slice with a simple green salad dressed with a bright lemon vinaigrette to cut through the richness of the cheese. Roast cherry tomatoes, asparagus spears, or zucchini planks alongside the quiche in the oven for a complete and healthy meal. For a brunch spread, serve it as the centerpiece alongside fresh fruit and a bread basket.

FAQs (Frequently Asked Questions)

Why did my crustless quiche turn out watery?

This is almost always due to excess moisture in the spinach. Make sure to thoroughly squeeze out all the water after wilting the spinach. If using frozen spinach, thaw completely and press firmly.

Can I use frozen spinach instead of fresh?

Yes, you can. Be sure to thaw it completely and then press out as much excess liquid as possible before adding it to the quiche mixture. I find that a full bag of frozen spinach yields about half the volume of fresh spinach when squeezed, so adjust accordingly.

What can I use instead of milk for the quiche?

You can substitute heavy cream for a richer texture, or use a non-dairy alternative like unsweetened oat milk or almond milk. However, the texture may be slightly less creamy with non-dairy options.

Can I make this crustless spinach quiche recipe ahead of time and freeze it?

Yes, this recipe freezes well. Bake and cool completely, then wrap tightly in foil and plastic wrap. Thaw overnight in the refrigerator before reheating for a quick family dinner.

How do I know when the quiche is fully cooked?

The quiche is done when the center is set, and a knife inserted near the middle comes out clean. The top should be lightly golden brown and slightly puffed around the edges.

How long does the quiche last in the refrigerator?

Properly stored in an airtight container, leftover quiche will last for 3-4 days in the refrigerator. Reheat slices in the microwave or oven for best results.

Is this a low-carb crustless spinach quiche recipe?

Yes, because we skip the crust, this recipe is naturally low-carb and high in protein, making it great for healthy eating. The primary ingredients are eggs, vegetables, and cheese, with minimal carbohydrates.

Conclusion

This easy crustless spinach quiche recipe is a delicious and healthy high-protein solution for quick meals throughout the week. Save this family-friendly recipe to Pinterest to make meal prep easier for your next easy dinner.

crustless spinach quiche recipe

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• Author: Madison Clarke
• Total Time: 70 minutes
• Yield: 8 servings 1x
• Diet: Vegetarian

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Description

A creamy, high-protein crustless spinach quiche featuring a Mediterranean twist with feta cheese and sun-dried tomatoes. It’s a quick and easy recipe perfect for meal prepping or busy mornings, eliminating the need for a pie crust.

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Ingredients

Scale 1x2x3x

• 1 tablespoon extra virgin olive oil
• 1 small yellow onion, finely diced
• 2 cloves garlic, minced
• 300 g fresh spinach, stems removed, roughly chopped
• 6 large eggs
• 1 cup full-fat milk or half-and-half
• 1 teaspoon fine sea salt
• 0.5 teaspoon freshly ground black pepper
• 0.25 teaspoon freshly grated nutmeg (optional)
• 0.5 cup shredded Monterey Jack or Gruyère cheese
• 0.5 cup oil-packed sun-dried tomatoes, drained and finely chopped
• 0.75 cup crumbled feta cheese
• 0.5 teaspoon dried oregano
• 1 teaspoon fresh oregano or parsley, finely chopped, for garnish

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Instructions

1. Prep Oven and Pan: Preheat your oven to 190°C (375°F). Lightly grease a 23 cm (9-inch) pie dish.
2. Sauté Aromatics: In a large skillet, heat 1 tablespoon olive oil over medium heat. Add the finely diced onion and cook until softened, about 5-7 minutes. Add minced garlic and cook for 1 minute until fragrant.
3. Wilt and Squeeze Spinach: Add the chopped fresh spinach to the skillet with the onion and garlic mixture. Cook until the spinach is completely wilted. Transfer to a fine-mesh sieve and press firmly to remove as much liquid as possible.
4. Prepare Egg Custard Base: In a large bowl, whisk together the eggs, milk or half-and-half, salt, pepper, and nutmeg (if using) until well combined. Stir in the shredded cheese and the squeezed spinach.
5. Layer the Quiche: Pour half of the egg and spinach mixture into the prepared pie dish. In a separate small bowl, combine the chopped sun-dried tomatoes, crumbled feta cheese, and dried oregano. Spoon dollops of this mixture evenly over the egg layer.
6. Swirl and Bake: Pour the remaining egg mixture over the top. Gently swirl the tomato-feta mixture into the batter with a knife. Bake for 35-45 minutes, or until the quiche is set in the center and a knife inserted near the center comes out clean. If the top browns too quickly, cover loosely with foil.
7. Rest Before Serving: Remove the quiche from the oven and let it rest on a wire rack for 10-15 minutes before slicing.
8. Garnish: Drizzle a small amount of the reserved sun-dried tomato oil over each slice and sprinkle with fresh chopped oregano or parsley before serving warm or at room temperature.

Notes

Squeeze the cooked spinach thoroughly to remove excess moisture; this prevents the quiche from becoming spongy and wet. If the quiche top browns too quickly before the center sets, cover loosely with foil for the remaining bake time.

• Prep Time: 15 minutes
• Cook Time: 40 minutes
• Category: Breakfast
• Method: Baking
• Cuisine: Mediterranean

Nutrition

• Serving Size: 1 slice (120 g)
• Calories: 190 calories
• Sugar: 2 g
• Sodium: 400 mg
• Fat: 12 g
• Saturated Fat: 5 g
• Unsaturated Fat: 5 g
• Trans Fat: 0 g
• Carbohydrates: 5 g
• Fiber: 1 g
• Protein: 10 g
• Cholesterol: 150 mg