Crustless Quiche Loaf

Looking for a delicious, protein-packed breakfast or brunch option that’s simple to make and easy to customize? This Crustless Quiche Loaf is exactly that—a savory, fluffy loaf filled with vibrant vegetables and melty mozzarella, baked to perfection without the fuss of a crust. It’s an incredible way to enjoy classic quiche flavors while keeping things lighter and quicker. Whether you’re meal prepping for the week or serving up a crowd-pleaser, this recipe delivers on taste and texture every time.

Reasons to Love Crustless Quiche Loaf

• Low-carb and gluten-free: Without a crust, this loaf is naturally lower in carbs, making it a great option for those watching their intake.
• High in protein: Using whole eggs and egg whites, it’s packed with muscle-friendly protein to keep you energized.
• Versatile and customizable: You can swap out veggies or herbs to suit your taste or what’s in season.
• Perfect for meal prep: Make it ahead and slice it up for quick breakfasts or snacks during busy days.
• Bright and fresh: Fresh tomatoes, bell peppers, and thyme add layers of flavor and beautiful color.

What You’ll Need

• 1 cup part-skim mozzarella, shredded
• 6 large egg whites (save yolks if desired for other uses)
• 6 large whole eggs
• 1/2 teaspoon baking soda
• 1/4 cup low-fat milk
• 2 medium tomatoes, chopped
• 1 yellow bell pepper (or orange/red), stemmed, seeded, and diced
• 2 tablespoons fresh thyme leaves
• 1/4 teaspoon kosher or sea salt
• 1/4 teaspoon black pepper

Setup & Equipment

• Loaf pan: A standard 9×5-inch loaf pan works perfectly to give the quiche its shape.
• Mixing bowls: One large for eggs and another for veggies and cheese.
• Whisk or electric mixer: To beat eggs and incorporate air for fluffiness.
• Non-stick spray or parchment paper: To ensure easy removal from the pan.
• Knife and cutting board: For prepping vegetables.
• Oven: Preheated to 350°F (175°C) for even baking.

Crustless Quiche Loaf — Do This Next

Step 1: Prep Your Ingredients

Start by washing and dicing the tomatoes and bell pepper into small, uniform pieces. Strip the fresh thyme leaves from their stems. Shred the mozzarella if not pre-shredded. Set all aside.

Step 2: Whisk the Eggs

In a large bowl, combine the 6 whole eggs and 6 egg whites. Add the baking soda and low-fat milk. Whisk vigorously until the mixture is light and slightly frothy. This helps to make your Crustless Quiche Loaf airy and tender.

Step 3: Incorporate Veggies and Cheese

Gently fold in the chopped tomatoes, diced bell pepper, shredded mozzarella, and fresh thyme leaves. Season with salt and pepper, mixing just until everything is evenly distributed.

Step 4: Prepare the Pan

Lightly grease your loaf pan with non-stick spray or line it with parchment paper. This step ensures the loaf will come out cleanly once baked.

Step 5: Bake the Loaf

Pour the egg and vegetable mixture into the prepared loaf pan, smoothing the top with a spatula. Bake in the preheated oven at 350°F (175°C) for about 45 to 50 minutes, or until the loaf is set and a toothpick inserted in the center comes out clean.

Step 6: Cool and Slice

Remove from the oven and allow the loaf to cool for at least 10 minutes before slicing. This resting time helps the quiche hold its shape, making it easier to serve.

Variations for Dietary Needs

• For a dairy-free twist, substitute mozzarella with a plant-based cheese alternative.
• Use almond milk or oat milk instead of low-fat milk for a lactose-free option.
• Add in sautéed mushrooms or spinach for extra greens and nutrients—similar to the flavor profile in a One Skillet Mushroom Spinach Lasagna Bake.
• Swap thyme for rosemary or basil to change up the herbal notes.

Pro Perspective

Seasoned home cooks and professional chefs alike appreciate the simplicity and adaptability of this Crustless Quiche Loaf.

• Using a combination of whole eggs and egg whites creates a balance between richness and lightness — a tip often shared by culinary experts.
• Fresh herbs like thyme bring brightness that dried herbs can’t match, elevating the flavor effortlessly.
• Incorporating baking soda into the egg mixture might seem unusual, but it helps the loaf rise just enough to achieve a tender crumb without puffing up excessively.

Storage Pro Tips

After baking, wrap your Crustless Quiche Loaf tightly in plastic wrap or store it in an airtight container. It keeps well in the refrigerator for up to 4 days, making it perfect for quick breakfasts on the go.

If you want to keep it longer, slice and freeze individual portions in freezer bags for up to 2 months. Reheat gently in the microwave or oven until warmed through.

FAQ

Can I add meat to the Crustless Quiche Loaf?

Absolutely! Diced cooked chicken or turkey sausage would blend well with the vegetables and cheese. Just make sure any meat you add is fully cooked before mixing it into the egg batter.

Why use both whole eggs and egg whites?

Using both allows you to enjoy the richness of yolks while keeping the loaf lighter and lower in fat by adding extra egg whites. This combination also improves the texture, making it fluffier.

Can I make this recipe dairy-free?

Yes, swap the mozzarella for your favorite plant-based cheese alternative and use a dairy-free milk substitute. The flavor and texture will be slightly different but still delicious.

What is the best way to reheat slices?

Reheat slices in the microwave for about 30 seconds or in a preheated oven at 325°F (160°C) covered with foil to keep moisture intact. This prevents drying out while warming evenly.

Weekend Projects

• Southwest Tater Tot Breakfast Casserole — A hearty and flavorful morning bake perfect for family brunch.
• Savory Cheddar Bacon Zucchini Muffins — Ideal for grab-and-go breakfasts packed with veggies and cheese.
• One Skillet Mushroom Spinach Lasagna Bake — A comforting dinner that’s easy to assemble and full of umami.

See You at the Table

This Crustless Quiche Loaf is a simple yet impressive dish that will quickly become a staple in your kitchen. Whether you’re serving it for breakfast, brunch, or even a light dinner, its colorful veggies and creamy mozzarella make every bite satisfying. Pair it with a crisp salad or fresh fruit for a complete meal that’s sure to please. Enjoy this loaf warm or cold, and watch it disappear fast — it’s that good!

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