High Protein Breakfast Casserole

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By Emmy Minucci

Published: Sep 5, 2025

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This High Protein Breakfast Casserole is the ultimate make-ahead meal to simplify your mornings. With eggs, cottage cheese, and veggies, it delivers 25g of protein per serving and keeps you full until lunchtime.

High Protein Breakfast Casserole

Simple Ingredients Make This Casserole a Weekday Win

A healthy breakfast doesn’t need to be complicated or boring. This casserole proves that simple ingredients can turn into something crave-worthy and nutritious in no time.

Protein-Packed Stars You Already Have

This casserole uses staple ingredients you probably already have:

  • Eggs: The base of the casserole and a rich source of protein and vitamins
  • Cottage Cheese: Adds creaminess and protein without the heaviness of cream
  • Shredded Cheese: Just a sprinkle gives that gooey, cheesy pull we love
  • Spinach, Bell Peppers, Peas: Adds color, texture, and nutrients
  • Seasonings: Garlic powder, sea salt, and black pepper bring it all together

What’s especially satisfying about this dish is how naturally high-protein it is, without needing specialty products. You won’t find expensive powders or obscure ingredients here. And if you’ve already fallen in love with easy high-protein recipes like High Protein French Toast, this one will slide right into your morning routine.

Why Cottage Cheese is a Secret Weapon

Cottage cheese often gets overlooked, but in this dish, it shines. Its mild flavor blends into the eggs, and the 4% fat version keeps things moist without being greasy.

Not only does it give the casserole a creamy texture, but it also:

  • Adds a whopping 50g+ of protein to the whole dish
  • Boosts calcium and B12
  • Melts into the eggs for a tender bite, not a chunky one

If you’re on a journey to tone up or maintain your energy through a packed morning, incorporating cottage cheese like this is an easy win.

Recipe

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High Protein Breakfast Casserole

High Protein Breakfast Casserole


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  • Author: Evardi Romano
  • Total Time: 40 minutes
  • Yield: 6 servings 1x

Description

This High Protein Breakfast Casserole is a low-carb, make-ahead dish that keeps you full and fueled. Made with cottage cheese, eggs, and colorful veggies, each slice delivers over 25g of protein—perfect for busy mornings or post-workout meals.


Ingredients

Scale
  • 12 large eggs
  • 2 cups Cottage Cheese (440 g), 4% fat
  • ½ cup Shredded Mozzarella or Monterey Jack (55 g)
  • 1 cup Fresh Spinach, chopped
  • ¼ cup Bell Peppers, diced
  • ¼ cup Peas (40 g), optional
  • â…“ Onion, thinly sliced
  • ½ tsp Garlic Powder, optional
  • â…“ tsp Sea Salt, more to taste
  • Black Pepper, to taste

Instructions

  1. Preheat oven to 350°F (180°C) and grease a 9×13″ baking dish with olive oil or spray.
  2. Add eggs, cottage cheese, salt, and pepper to a large bowl.
  3. Whisk until combined. Stir in spinach, bell peppers, onion, shredded cheese, and optional peas.
  4. (Optional) Blend cottage cheese and eggs before adding vegetables for a smoother texture.
  5. Pour mixture evenly into the baking dish. Top with extra shredded cheese if desired.
  6. Bake for 35–45 minutes, until a toothpick comes out clean and edges are golden.
  7. Let cool for 15 minutes before slicing and serving.

Notes

  • Let cool completely before slicing for meal prep. Store in an airtight container in the fridge for 3 days.
  • To freeze: Cool fully, slice, and store portions in freezer bags for up to 3 months.
  • To reheat: Thaw overnight and microwave for 30–60 seconds, or warm in oven at 350°F (180°C).
  • Prep Time: 5 minutes
  • Cook Time: 35 minutes
  • Category: Breakfast
  • Method: Baking
  • Cuisine: American

Nutrition

  • Serving Size: 1 serving
  • Calories: 236.6
  • Sugar: 3.3
  • Sodium: 547.6
  • Fat: 13.6
  • Saturated Fat: 5.2
  • Unsaturated Fat: 6.3
  • Trans Fat: 0.03
  • Carbohydrates: 5.1
  • Fiber: 0.7
  • Protein: 25.1
  • Cholesterol: 347.1

How to Make This High Protein Breakfast Casserole

This casserole is as easy to throw together as it is satisfying to eat. You won’t need to dirty half your kitchen or spend an hour prepping. Just a bowl, a baking dish, and a whisk—and you’re ready.

Step-by-Step Instructions You Can Trust

Here’s how to make it:

  1. Preheat and Grease the Pan
    Set your oven to 350°F (180°C). Lightly grease a 9×13″ baking dish with olive oil or a clean-label spray. Be thorough here—eggs love to stick!
  2. Whisk the Base
    In a large mixing bowl, whisk together 12 large eggs, 2 cups of cottage cheese (preferably 4% fat), sea salt, black pepper, and optional garlic powder.
  3. Add the Veggies and Cheese
    Stir in chopped spinach, diced bell peppers, thinly sliced onion, and shredded cheese (mozzarella or Monterey Jack both work well). Peas are optional, but they add a pop of color and sweetness.
  4. Blend for a Creamier Texture (Optional)
    If you prefer a smoother consistency, blend the eggs and cottage cheese before adding the mix-ins. This is a game-changer if you’re making this for picky eaters or younger kids.
  5. Pour and Bake
    Pour the mixture into the greased dish. Spread it out evenly, ensuring veggies and cheese are well distributed. For extra cheesy goodness, sprinkle a bit more cheese on top.
  6. Bake Until Golden
    Bake for 35–45 minutes, or until the top is golden and a toothpick inserted in the center comes out clean.
  7. Let It Set
    Allow the casserole to cool for at least 15 minutes before slicing. This helps the structure firm up so you get clean, satisfying slices.

And that’s it! You’ve just made a high-protein, low-carb breakfast that feels like comfort food but fuels like a protein shake.

Meal Prep Friendly and Freezer-Safe

One of the biggest advantages of this breakfast casserole is how well it stores:

  • Fridge: Let it cool, then slice and store in an airtight container for up to 3 days.
  • Freezer: Cool completely, slice, and wrap individual portions in freezer-safe bags. Reheat in the oven or microwave when ready.
  • Microwave Hack: From fridge, 30–60 seconds is usually all you need.

Pair it with a quick green smoothie or a slice of Cottage Cheese Banana Oat Protein Pancake Bites for a complete, balanced breakfast.

This casserole doesn’t just save you time—it makes mornings feel manageable again.

High Protein Breakfast Casserole

Why This Casserole Works for Your Goals

Whether you’re navigating early meetings, school drop-offs, or squeezing in a morning workout, your breakfast needs to show up for you. This casserole isn’t just convenient—it’s built to support women’s real-life wellness goals, from fat loss to hormone balance.

Keeps You Full and Energized Without the Crash

With over 25 grams of protein per serving, this casserole slows digestion and keeps blood sugar steady. That means:

  • You feel satisfied longer
  • Cravings are less likely to sneak up
  • You stay focused without reaching for a second cup of coffee

Unlike sugary cereals or toast-and-go breakfasts, this egg and cottage cheese combo fuels your body with quality protein and steady energy.

When you need a healthy start that won’t burn you out by 10 a.m., this dish delivers—just like a warm Protein Mug Cake can get you through an afternoon slump without the crash.

Supports Hormone Health and Muscle Maintenance

Protein does more than build muscle—it’s essential for hormone regulation, especially for women balancing work, workouts, and everything in between.

This breakfast casserole:

  • Supports lean muscle mass (which boosts metabolism)
  • Helps balance hunger hormones like ghrelin and leptin
  • May even reduce PMS-related sugar cravings

The healthy fats from the cottage cheese and egg yolks also assist in absorbing fat-soluble vitamins like A, D, E, and K—key players in hormone support.

Even better? It’s low in carbs without being restrictive, making it perfect for those seeking balance, not burnout.

Customizations to Make It Your Own

The best recipes are flexible, and this casserole fits right into your routine no matter your taste, lifestyle, or dietary preferences. Whether you’re cooking for one, a partner, or a picky toddler—this base is easy to tweak.

Flavor Boosts and Simple Ingredient Swaps

Switch things up with these delicious mix-in ideas:

  • Cheese: Swap mozzarella for sharp cheddar, feta, or goat cheese for tang
  • Greens: Sub spinach with chopped kale, arugula, or even zucchini ribbons
  • Veggies: Add diced tomatoes, mushrooms, or shredded carrots
  • Herbs & Spices: Add basil, parsley, cumin, or smoked paprika for bold flavor

Want a little heat? A pinch of chili flakes or diced jalapeño can wake it up beautifully.

Prefer a dairy-free version? Use dairy-free cottage-style cheese and your favorite shredded vegan cheese. The flavor still holds up, and the texture stays satisfying.

If you’re already experimenting with easy, nourishing breakfast recipes like Oatmeal Banana Muffins, this casserole is your savory go-to.

Kid-Friendly and Family-Approved Ideas

Getting kids to eat veggies at breakfast can be a struggle. But this casserole sneaks them in so well, most won’t even notice.

To make it more kid-friendly:

  • Skip the onions and peas
  • Use mild cheeses
  • Serve with whole grain toast or avocado slices

Want to pack it in a lunchbox? Slice it into squares and let it cool completely. It holds its shape, travels well, and can be eaten warm or chilled.

Busy mornings just got easier—and tastier—for everyone.

High Protein Breakfast Casserole

Macros, Storage Tips, and Why It Belongs in Your Rotation

Knowing what’s in your food helps you make better decisions—and feel empowered doing it. This breakfast casserole delivers the kind of nutritional support that fits your goals without making life harder.

Macro Breakdown That Supports Your Lifestyle

Here’s what you get per slice (based on 6 servings total):

NutrientAmount
Calories236 kcal
Protein25.1 g
Carbohydrates5.1 g
Fat13.6 g
Fiber0.7 g
Sugar3.3 g
Cholesterol347 mg
Sodium548 mg
Vitamin A1354 IU
Vitamin C12.5 mg
Calcium165 mg
Iron1.9 mg

That protein-to-carb ratio is ideal for:

  • Supporting fat loss and lean muscle maintenance
  • Reducing hunger between meals
  • Keeping blood sugar stable

With low sugar and under 6g net carbs per slice, it’s perfect for those managing insulin sensitivity or trying to stay full longer.

Meal Prep Tips That Save You Time

No one has time for complicated prep during the week. Here’s how to make this casserole work for you:

  • Fridge: After baking and cooling, slice it into 6 squares. Store in an airtight container up to 3 days.
  • Freezer: Wrap each square tightly and freeze for up to 3 months.
  • Reheating: Microwave for 30–60 seconds or reheat in the oven at 350°F (180°C) until warmed through.

Want to pair it with something sweet but still smart? A small slice of banana or a few Oatmeal Banana Muffins rounds out the meal without tipping the scale.

This casserole doesn’t just fit your macros—it fits your schedule, your goals, and your real life.

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