- by Lauren
- 1 minute read
Healthy Breakfast Casserole
If your mornings feel like a tornado of coffee, car keys, and chaos… you need a breakfast that’s ready before you are. This Healthy Breakfast Casserole is: high in protein, full of veggies, and totally meal prep friendly!
Bake it once, eat it all week. No more skipping breakfast or grabbing drive-thru biscuits that leave you starving an hour later.

Macros (per serving): Calories: ~275 Protein: ~25g Carbs: ~6g Fat: ~16g
(macros will vary slightly depending on brands and ingredient swaps)
Breakfast Casserole Ingredients
- 12 large eggs
- 1 cup cottage cheese (adds creaminess + protein)
- 1 cup shredded cheddar cheese
- 1 bell pepper, diced
- ½ cup diced onion
- 1 cup chopped spinach (fresh or frozen)
- 1 tsp garlic powder
- Salt and pepper to taste
- Optional: ½–1 cup cooked turkey sausage or crumbled bacon
Breakfast Casserole Directions
- Preheat oven to 375°F.
- Sauté onion and bell pepper in a little olive oil until soft. Add spinach and cook until wilted.
- In a large bowl, whisk together eggs, cottage cheese, shredded cheddar, garlic powder, salt, and pepper.
- Stir in your cooked veggies (and sausage or bacon, if using).
- Pour mixture into a greased 9×13 baking dish.
- Bake for 35–40 minutes, until the center is set and the top is golden.
- Cool, slice, and store in the fridge for up to 5 days.
Pro Tip: Reheat in the microwave for 60–90 seconds or eat cold on the go
Why This Casserole Works (Beyond Taste)
It freezes well – Slice and freeze individually for emergency mornings
It’s protein-packed – So you actually stay full ‘til lunch
It’s customizable – Add whatever veggies, cheese, or meats you’ve got
It’s meal prep gold – One bake = breakfast all week
So this Sunday, instead of winging it—bake this. Slice it. Stack your fridge with real food that sets you up to win the week.
FAQs
Can I use egg substitutes in this casserole?
Absolutely! You can use liquid egg substitutes or egg whites if you prefer. Adjust the quantity accordingly to match the consistency and protein content you desire.
What kind of protein can I add to this casserole?
This recipe is versatile; you can add cooked chicken, turkey, ham, or even plant-based proteins like tofu or tempeh to enhance the protein content.
How long will this casserole stay fresh in the refrigerator?
Properly stored in an airtight container, this breakfast casserole can last for up to 4 days in the refrigerator.