Why Make This Recipe
A High-Protein Breakfast Casserole is a fantastic way to start your day. It combines protein-rich ingredients that keep you full and energized. This dish is not only delicious but also easy to prepare, making it perfect for those busy mornings. You can even prep it in advance for a quick breakfast during the week.
How to Make High-Protein Breakfast Casserole
Ingredients:
- Lean turkey sausage
- Eggs
- Spinach
- Milk
- Cheese (optional)
- Salt
- Pepper
Directions:
- Preheat your oven to 350°F (175°C).
- In a skillet, cook the turkey sausage until it is browned and cooked through.
- In a large bowl, whisk together the eggs and milk until well combined.
- Add the cooked sausage, spinach, cheese (if you’re using it), salt, and pepper to the bowl; mix everything well.
- Pour the mixture into a greased baking dish.
- Bake in the oven for 30-35 minutes, or until the eggs are set and the top is lightly golden.
- Once done, slice it into portions and serve warm, or refrigerate it for easy meal prep.
How to Serve High-Protein Breakfast Casserole
You can serve this casserole warm straight from the oven. It pairs well with fresh fruit or a light salad for added nutrients. If you’re in a hurry, it’s also great to take along as a grab-and-go option.
How to Store High-Protein Breakfast Casserole
Store any leftovers in an airtight container in the refrigerator. It will stay fresh for up to five days. You can also freeze individual slices for up to three months. To reheat, simply microwave until warmed through.
Tips to Make High-Protein Breakfast Casserole
- Feel free to add your favorite vegetables like bell peppers or mushrooms for extra flavor and nutrition.
- If you want it spicier, add some chopped jalapeños or red pepper flakes.
- To make it dairy-free, use a plant-based milk and skip the cheese.
Variation
For a vegetarian version, replace the turkey sausage with black beans or add more veggies like zucchini and onions. You can also use tofu instead of eggs for a vegan option.
FAQs
Can I make this casserole ahead of time? Yes! You can prepare it the night before and simply bake it in the morning.
How do I know when the casserole is done? The casserole is ready when the eggs are set in the middle and the top is lightly browned.
Can I use different types of meat? Definitely! Feel free to substitute the turkey sausage with chicken sausage, ham, or bacon depending on your preference.

High-Protein Breakfast Casserole
Ingredients
Method
- Preheat your oven to 350°F (175°C).
- In a skillet, cook the turkey sausage until it is browned and cooked through.
- In a large bowl, whisk together the eggs and milk until well combined.
- Add the cooked sausage, spinach, cheese (if you’re using it), salt, and pepper to the bowl; mix everything well.
- Pour the mixture into a greased baking dish.
- Bake in the oven for 30-35 minutes, or until the eggs are set and the top is lightly golden.
- Once done, slice it into portions and serve warm.
- Pairs well with fresh fruit or a light salad.