This hearty 4 Ingredient Sausage Breakfast Casserole is super easy to whip up! With just sausage, eggs, cheese, and bread, you have a tasty meal that everyone will love.
Making breakfast has never been simpler! I love how quick it is to mix everything together and pop it in the oven. It’s perfect for busy mornings or lazy weekends! 🍳
Key Ingredients & Substitutions
Breakfast Sausage: I suggest using pork sausage for the richest flavor. If you’re looking for a lighter option, turkey sausage works well too. Vegetarian substitutes are available, like plant-based sausage, if you prefer not to use meat.
Eggs: Large eggs are standard, but you can swap them for egg whites or egg substitutes to make it a bit lighter. I’ve found that using farm-fresh eggs gives a brighter color and richer taste.
Cheddar Cheese: I love sharp cheddar for its bold flavor. If you’re in the mood for a twist, try pepper jack for a little heat or mozzarella for a different meltiness. Just remember, a good quality cheese will make a big difference!
Bread: Regular white or whole-grain bread works perfectly. You can also use stale bread or leftover dinner rolls. For a gluten-free option, try gluten-free bread instead. It’s a great way to use up what’s in the pantry!
How Do You Cook Breakfast Sausage to Perfection?
Cooking breakfast sausage properly ensures great flavor and texture. It’s pretty simple, but here are some key steps:
- Start with a medium heat to allow the sausage to brown slowly without burning.
- Break it into small pieces as it cooks for even browning and to keep it from clumping together.
- Cook it until it reaches 160°F (71°C) for safety. This usually takes about 6-8 minutes. Don’t rush it!
- For a deeper flavor, you can add spices like garlic powder or onion powder to the sausage while it’s cooking.
Once you’ve got perfectly cooked sausage, you’re ready to mix it into your casserole and enjoy a comforting breakfast dish!

4 Ingredient Sausage Breakfast Casserole
Ingredients You’ll Need:
- 1 (16 oz) package breakfast sausage (e.g., pork sausage)
- 6 large eggs
- 2 cups shredded cheddar cheese
- 4 slices bread (approximately), cubed
How Much Time Will You Need?
This delicious casserole requires about 10 minutes of prep time, plus 30-35 minutes to bake. Altogether, you’ll have a warm, comforting breakfast ready in about 45 minutes. Perfect for a weekend treat or even during a busy weekday!
Step-by-Step Instructions:
1. Preheat and Prepare:
Start by preheating your oven to 350°F (175°C). Take a 9×9 inch baking dish and lightly grease it with some butter or cooking spray. This will help prevent the casserole from sticking.
2. Cook the Sausage:
Next, grab a skillet and heat it over medium heat. Add the breakfast sausage and cook it until it’s browned and fully cooked. Use a wooden spoon or spatula to break it into crumbles as it cooks. Once done, drain any excess grease and set the sausage aside so it cools for a moment.
3. Mix the Ingredients:
In a large mixing bowl, crack the eggs and beat them until they’re well mixed. Then, add in the cubed bread and the cooked sausage. Gently combine everything so the bread is coated in the egg mixture and mixed with the sausage.
4. Assemble the Casserole:
Pour the mixture into your prepared baking dish. Make sure it’s evenly spread out. Now, sprinkle the shredded cheddar cheese on top, making it look all cheesy and inviting!
5. Bake Away:
Place the dish in the oven and bake for about 30-35 minutes. You’ll know it’s done when the eggs are fully set and the top is golden brown and bubbly. Keep an eye on it towards the end so it doesn’t over-bake!
6. Serve and Enjoy:
Once it’s ready, take the casserole out of the oven and let it cool for a few minutes. Then slice it into squares, serve warm, and enjoy this simple yet delicious breakfast delight!
Can I Use a Different Type of Sausage?
Absolutely! You can use turkey sausage for a lighter option or chicken sausage for a different flavor. For a vegetarian version, try using plant-based sausage or omit the sausage altogether and add some sautéed veggies instead!
Can I Make This Casserole Ahead of Time?
Yes, you can prepare the casserole the night before! Assemble everything in the baking dish, cover it with foil, and refrigerate. In the morning, bake it straight from the fridge, adding an extra 5-10 minutes to the baking time.
How Should I Store Leftovers?
Leftovers can be stored in an airtight container in the fridge for up to 3 days. To reheat, simply microwave individual portions or warm it gently in the oven until heated through.
Can I Add Other Ingredients?
Definitely! Feel free to mix in ingredients like diced bell peppers, onions, or spinach for added veggies. You can also swap the cheddar for your favorite cheese variety, such as mozzarella or feta, to switch up the flavor!



