If you’re in the mood for a wholesome breakfast that’s hearty, satisfying, and bursting with flavor, then look no further than this Sausage and Egg Cottage Cheese Breakfast Casserole. This dish is the perfect blend of protein-packed ingredients that will keep you fueled throughout the morning. Imagine a savory casserole filled with breakfast sausage, fresh vegetables, and creamy cottage cheese, all baked to perfection. It’s not only delicious but incredibly easy to prepare, making it an excellent choice for busy mornings or weekend brunches with family and friends.
Let’s dive into why you’ll love this casserole and how to make it.
Reasons to Love Sausage and Egg Cottage Cheese Breakfast Casserole

There are plenty of reasons to fall in love with this breakfast casserole. First and foremost, it’s a one-pan wonder that makes cooking and cleanup a breeze. You can prepare it ahead of time, allowing you to enjoy a leisurely breakfast without feeling rushed. Plus, the combination of creamy cottage cheese and eggs creates a fluffy texture that perfectly complements the savory sausage and vibrant vegetables.
This recipe is also versatile. You can easily customize it by adding your favorite ingredients or swapping out vegetables based on what you have on hand. It’s a great way to use up leftover veggies from the fridge! And let’s not forget—it’s a crowd-pleaser, perfect for feeding a group or meal prepping for the week ahead.
Ingredients at a Glance
To make this Sausage and Egg Cottage Cheese Breakfast Casserole, you’ll need the following ingredients:
- 1 Tbsp avocado oil
- 1 yellow onion, diced
- 3 cloves garlic, minced
- 1 pound breakfast sausage
- 1 red bell pepper, diced
- 6 cups baby spinach, chopped
- 1 tsp sea salt, to taste
- 1/2 tsp black pepper
- 1 cup all-purpose flour
- 12 large eggs
- 16 ounces cottage cheese
- 8 ounces colby jack cheese, grated
- 1 bunch green onions, chopped
Essential Tools for Success
Before you start cooking, gather these essential tools:
- Large skillet: For sautéing vegetables and sausage.
- Mixing bowls: To combine the ingredients.
- Whisk: For beating the eggs and mixing the casserole.
- 9×13 inch baking dish: The perfect size for this casserole.
- Spatula: To help with layering and serving the casserole.
Sausage and Egg Cottage Cheese Breakfast Casserole Made Stepwise

Step 1: Preheat the Oven
Begin by preheating your oven to 350°F (175°C). This ensures that your casserole bakes evenly and comes out perfectly cooked.
Step 2: Sauté the Vegetables and Sausage
In a large skillet, heat the avocado oil over medium heat. Add the diced yellow onion and minced garlic, sautéing until fragrant and translucent, about 3-4 minutes. Next, add the breakfast sausage to the skillet, breaking it apart with a spatula. Cook until browned and cooked through, about 5-7 minutes.
Step 3: Add the Bell Pepper and Spinach
Once the sausage is cooked, add the diced red bell pepper and chopped baby spinach to the skillet. Season with sea salt and black pepper. Sauté for another 3-4 minutes, until the spinach wilts down and the bell pepper softens.
Step 4: Prepare the Egg Mixture
In a large mixing bowl, whisk together the eggs, cottage cheese, and all-purpose flour until smooth. This mixture will be the base of your casserole, adding protein and creaminess.
Step 5: Combine Everything
Add the sautéed sausage and vegetable mixture into the egg mixture, stirring gently until everything is well combined. Fold in the grated colby jack cheese and half of the chopped green onions, reserving the other half for garnish.
Step 6: Bake the Casserole
Pour the mixture into a greased 9×13 inch baking dish, spreading it out evenly. Bake in the preheated oven for 35-40 minutes or until the top is golden brown and a toothpick inserted in the center comes out clean.
Step 7: Cool and Serve
Once baked, remove the casserole from the oven and allow it to cool for a few minutes. Garnish with the remaining chopped green onions before slicing and serving.
Season-by-Season Upgrades

This Sausage and Egg Cottage Cheese Breakfast Casserole is fantastic as is, but you can easily upgrade it based on the seasons or what you have available:
- Spring: Add asparagus or fresh herbs like dill or parsley for a bright flavor.
- Summer: Incorporate zucchini or fresh tomatoes for a garden-fresh twist.
- Fall: Try adding roasted sweet potatoes or butternut squash for a comforting autumn vibe.
- Winter: Include hearty greens like kale or add some spice with jalapeños or hot sauce.
Flavor Logic
The beauty of this Sausage and Egg Cottage Cheese Breakfast Casserole lies in its harmonious blend of flavors and textures. The savory sausage pairs beautifully with the creamy cottage cheese and eggs, creating a satisfying and rich base. The addition of sautéed onions, garlic, and bell peppers adds depth and sweetness, while the spinach introduces a fresh, vibrant note.
You can also play around with different types of cheese or sausage; turkey sausage is a great alternative if you want a lighter option. The versatility of this recipe means you can tailor it to your taste preferences or dietary needs without losing its delicious essence.
Prep Ahead & Store
One of the best features of this breakfast casserole is that it can be prepared ahead of time. Here are some tips:
- Make Ahead: You can assemble the casserole the night before, cover it, and store it in the refrigerator. Just pop it in the oven in the morning for a quick and easy breakfast.
- Store Leftovers: If you have leftovers, store them in an airtight container in the refrigerator for up to 4 days. Reheat in the microwave or oven until warmed through.
- Freezing: You can freeze the assembled casserole before baking. Cover it tightly and store it for up to 3 months. Thaw overnight in the fridge before baking.
Quick Q&A
Can I use a different type of cheese?
Absolutely! Feel free to substitute colby jack with cheddar, mozzarella, or even feta for a different flavor profile.
How do I make this casserole lighter?
You can use turkey sausage and low-fat cottage cheese to reduce the calorie content without sacrificing flavor.
Can I add more vegetables?
Yes! You can add any vegetables you like, such as mushrooms, zucchini, or even broccoli. Just make sure to sauté them first to reduce moisture.
Is this casserole suitable for meal prep?
Yes! This Sausage and Egg Cottage Cheese Breakfast Casserole is perfect for meal prep and can be made ahead of time for easy breakfasts throughout the week.
Similar Recipes
If you enjoyed this recipe, you might also like:
- Scrambled Eggs With Cottage Cheese
- Sausage Cream Cheese Crescents Recipe
- Bacon Spinach Feta Frittata
In Closing
This Sausage and Egg Cottage Cheese Breakfast Casserole is not just a breakfast dish; it’s a hearty start to your day that brings together flavors and textures in the most delightful way. Whether enjoyed fresh out of the oven or reheated as leftovers, it’s bound to become a favorite in your household. With its ease of preparation and adaptability, you’ll find yourself making it time and time again. So gather your ingredients, preheat that oven, and enjoy a delicious breakfast that fuels your day!

Sausage and Egg Cottage Cheese Breakfast Casserole
Ingredients
- 1 Tbsp avocado oil
- 1 yellow onion, diced
- 3 cloves garlic, minced
- 1 pound breakfast sausage
- 1 red bell pepper, diced
- 6 cups baby spinach, chopped
- 1 tsp sea salt to taste
- 1/2 tsp black pepper
- 1 cup all-purpose flour
- 12 large eggs
- 16 ounces cottage cheese
- 8 ounces colby jack cheese, grated
- 1 bunch green onions, chopped
Instructions
- Preheat your oven to 350°F (175°C).
- In a large skillet, heat the avocado oil over medium heat. Add the diced yellow onion and minced garlic, sautéing until fragrant and translucent, about 3-4 minutes. Add the breakfast sausage to the skillet, breaking it apart with a spatula. Cook until browned and cooked through, about 5-7 minutes.
- Once the sausage is cooked, add the diced red bell pepper and chopped baby spinach to the skillet. Season with sea salt and black pepper. Sauté for another 3-4 minutes, until the spinach wilts down and the bell pepper softens.
- In a large mixing bowl, whisk together the eggs, cottage cheese, and all-purpose flour until smooth.
- Add the sautéed sausage and vegetable mixture into the egg mixture, stirring gently until combined. Fold in the grated colby jack cheese and half of the chopped green onions.
- Pour the mixture into a greased 9x13 inch baking dish and bake for 35-40 minutes or until the top is golden brown and a toothpick inserted in the center comes out clean.
- Once baked, remove the casserole from the oven and allow it to cool for a few minutes. Garnish with the remaining chopped green onions before slicing and serving.
Equipment
- Large Skillet
- Mixing bowls
- Whisk
- 9x13 inch Baking Dish
- Spatula
Notes
- Make ahead by assembling the casserole the night before and refrigerating.
- Store leftovers in an airtight container in the refrigerator for up to 4 days.
- You can freeze the assembled casserole before baking for up to 3 months.
