High-Protein Vegetable Breakfast Bake

Ingredients for High-Protein Vegetable Breakfast Bake

Everything in this recipe is easy to find and simple to work with. I always keep carton egg whites and cottage cheese stocked because together they build serious protein without making the bake feel dense or heavy.

• 1 cup egg whites – I recommend carton egg whites for convenience and consistent results every time
• 4 large eggs
• 1 cup cottage cheese – my preference is full-fat for a creamier, richer texture throughout the bake
• 1/2 cup cheddar cheese (grated)
• 1 medium red bell pepper (diced)
• 1 medium green bell pepper (diced)
• 1 small onion (chopped)
• 1 cup fresh spinach (chopped)
• 1 cup broccoli florets (chopped small) – in my experience, cutting them small ensures they cook through evenly without staying crunchy in the center
• 1 teaspoon garlic powder
• 1/2 teaspoon salt
• 1/4 teaspoon black pepper
• 1 tablespoon olive oil or cooking spray – pro tip: a light coat of olive oil gives the edges a slightly crispier finish than spray alone

Step-by-Step Instructions

I recommend prepping your vegetables the night before if you want this bake on the table with almost no morning effort. Everything comes together in one bowl and one pan, which makes cleanup just as easy as the cooking.

Step 1: Preheat your oven to 375 degrees F (190 degrees C). Lightly grease a 9×13-inch baking dish with olive oil or cooking spray, making sure to coat the sides so nothing sticks when you slice.

Step 2: In a large mixing bowl, whisk together the egg whites and whole eggs for about 30 seconds until fully combined and slightly foamy. This extra aeration keeps the bake light rather than rubbery.

Step 3: Stir the cottage cheese and grated cheddar into the egg mixture until fully incorporated. The cottage cheese will look a little lumpy at this stage, but it smooths out completely during baking so do not worry about it.

Step 4: Heat olive oil in a skillet over medium heat. Add the diced bell peppers, chopped onion, and broccoli florets. Saute for about 5 minutes, stirring occasionally, until the vegetables are slightly softened but still holding their shape. Add the chopped spinach and cook for 2 more minutes until just wilted. Do not overcook the spinach here as it will continue cooking in the oven.

Step 5: Transfer the cooked vegetables into the egg and cheese mixture. Season with garlic powder, salt, and black pepper. Stir well until everything is evenly distributed throughout the batter.

Step 6: Pour the mixture into the prepared baking dish and spread it evenly with a spatula. Bake for 30 to 35 minutes, until the center is fully set and the top is golden. If the center still jiggles like liquid at 30 minutes, give it the full 35. A toothpick inserted in the center should come out clean with no wet egg on it.

Step 7: Let the bake rest for 5 minutes before slicing into squares. This short rest is important as it helps the squares hold their shape cleanly when cut and serve.

What to Serve with High-Protein Vegetable Breakfast Bake

This bake is satisfying on its own but pairs really well with a few simple additions that round out the meal without adding much effort.

Blueberry Cottage Cheese Breakfast Bake: If you are hosting a brunch or want a sweet alongside your savory, this Blueberry Cottage Cheese Breakfast Bake uses the same cottage cheese base and makes a beautiful side dish that balances the flavors on the table.

Protein-Packed Breakfast Burritos: For a bigger weekend brunch spread, these Protein-Packed Breakfast Burritos pair naturally with the bake and give everyone at the table something to grab on the go.

High-Protein Egg White Crepes: Light, thin, and easy to roll around fruit or a drizzle of nut butter, these High-Protein Egg White Crepes add a delicate texture contrast to the hearty slices of the bake.

Sun-Dried Tomato and Spinach Egg Biscuits: These Sun-Dried Tomato and Spinach Egg Biscuits share the same vegetable and egg theme and make a great grab-and-go addition alongside a square of the bake.

Fresh Walnut Apple Salad: A crisp, lightly dressed salad is one of the best ways to balance the richness of a cheesy egg bake. This Fresh Walnut Apple Salad brings a bright, fresh contrast that works especially well for a mid-morning brunch.

Viral Cottage Cheese Flatbread: Toasted and served alongside a warm square of the bake, this Viral Cottage Cheese Flatbread adds a satisfying crunch and keeps the high-protein theme going from the first bite to the last.

Make-Ahead and Storage Tips

Store leftover squares in an airtight container in the refrigerator for up to 4 days. I recommend slicing the entire bake right after it cools so individual portions are grab-and-go ready throughout the week without any extra effort in the morning.

To reheat, microwave a square covered with a damp paper towel for about 60 to 90 seconds, or warm it in a 350 degree F oven for 10 minutes if you prefer a slightly firmer texture. The oven method keeps the edges from going soft and gives you that fresh-baked quality again.

This high-protein vegetable breakfast bake also freezes well. Wrap individual portions in plastic wrap and store them in a freezer-safe bag for up to 2 months. Thaw overnight in the refrigerator and reheat as normal. Pro tip: label each portion with the date so nothing gets forgotten at the back of the freezer.

High-Protein Vegetable Breakfast Bake

A hearty, gluten-free egg and vegetable casserole made with egg whites, cottage cheese, cheddar, and fresh vegetables. Perfect for meal prep and ready in about 55 minutes including a 5-minute rest.

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Prep Time 15 minutes mins

Cook Time 35 minutes mins

Rest Time 5 minutes mins

Total Time 55 minutes mins

Servings: 8 portions

Course: Breakfast, Brunch, Meal Prep

Cuisine: American

Calories: 250

Ingredients Equipment Method Notes

Ingredients

  

• 1 cup egg whites carton egg whites recommended for convenience
• 4 large eggs
• 1 cup cottage cheese full-fat preferred for creamier texture
• 0.5 cup cheddar cheese grated
• 1 medium red bell pepper diced
• 1 medium green bell pepper diced
• 1 small onion chopped
• 1 cup fresh spinach chopped
• 1 cup broccoli florets chopped small for even cooking
• 1 tsp garlic powder
• 0.5 tsp salt
• 0.25 tsp black pepper
• 1 tbsp olive oil or cooking spray for greasing the pan and sauteing vegetables

Equipment

• 9×13-inch baking dish
• Large mixing bowl
• Skillet
• Whisk
• Spatula

Method

 

1. Preheat your oven to 375 degrees F (190 degrees C). Lightly grease a 9×13-inch baking dish with olive oil or cooking spray, coating the sides as well.
2. In a large mixing bowl, whisk together the egg whites and whole eggs for about 30 seconds until fully combined and slightly foamy.
3. Stir the cottage cheese and grated cheddar cheese into the egg mixture until fully incorporated. The mixture will look slightly lumpy from the cottage cheese but smooths out during baking.
4. Heat olive oil in a skillet over medium heat. Add the diced red and green bell peppers, chopped onion, and broccoli florets. Saute for about 5 minutes, stirring occasionally, until slightly softened but still holding their shape.
5. Add the chopped spinach to the skillet and cook for 2 more minutes until just wilted. Do not overcook as the spinach will continue cooking in the oven.
6. Transfer the cooked vegetables into the egg and cheese mixture. Season with garlic powder, salt, and black pepper. Stir well until everything is evenly distributed.
7. Pour the mixture into the prepared baking dish and spread evenly with a spatula. Bake for 30 to 35 minutes until the center is fully set and the top is golden. A toothpick inserted in the center should come out clean.
8. Let the bake rest for 5 minutes before slicing into squares. This helps the squares hold their shape cleanly. Serve warm.

Notes

Add mushrooms, zucchini, or cherry tomatoes for extra flavor and nutrients. For a spicy version, stir in chopped jalapenos or a pinch of red pepper flakes before baking. Substitute cottage cheese with ricotta or plain Greek yogurt in the same amount if needed. Slice the entire bake right after cooling for easy grab-and-go portions throughout the week. Freeze individual wrapped portions for up to 2 months and thaw overnight in the refrigerator before reheating.