This easy sausage egg casserole is cheesy, hearty, and perfect for making ahead—whether you’re feeding a crowd, hosting brunch, or just want a stress-free breakfast ready to go.
See how to make this easy sausage egg casserole…
Serve this breakfast casserole with these bakery-style lemon blueberry muffins for a bright, citrusy twist.
INGREDIENTS
- ½ medium yellow onion, diced
- 1 tbsp salted butter
- 1 lb ground pork sausage (sage flavor)
- 3 tbsp maple syrup
- 6 eggs
- 1½ cups half and half
- ½ tsp salt
- 6 slices bread, toasted and cut into cubes
- 1 cup cheddar cheese, shredded
- 1 cup Gruyère cheese, shredded (or substitute mozzarella)
POPULAR SUBSTITUTIONS & ADDITIONS
- Cheese: Swap Gruyère for mozzarella, Swiss, or pepper jack.
- Sausage: Use turkey, chicken, vegetarian sausage or try or cooked bacon.
- Bread: Try sourdough, whole wheat, or croissants.
- Veggie add-ins: Bell peppers, mushrooms, spinach.
- Herbs & spices: Fresh parsley, chives, or a pinch of smoked paprika.
Serve this breakfast casserole with BBQ Twisted Bacon.
HOW TO MAKE SAUSAGE EGG CASSEROLE
Here’s the step-by-step recipe…
Scroll to the bottom of the page and you can print it.
Step 1 – Grease a 9×13 baking dish with butter and set aside.
Step 8 – Remove the foil, reduce the oven temperature to 325°F, and bake for another 15–25 minutes, until the eggs are set and the center is no longer runny. Let the casserole rest for about 5 minutes before slicing. Cut into squares and serve.
De-licious!
TIPS FOR MAKING THE BEST SAUSAGE EGG CASSEROLE
- Toast the bread first for better texture (no soggy casserole)
- Let it rest before slicing so it sets cleanly
- Don’t skip the foil when baking for the best flavor and structure
Can’t wait to hear what you think!
I’d love to know how your version turned out! Drop a rating and leave a comment below to help the Sip Bite Go community. And if you snapped any photos, tag me on Instagram—I love sharing reader pics in my Stories!
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Easy Sausage Egg Casserole (Make-Ahead Breakfast)
This easy sausage egg casserole is the perfect make-ahead breakfast—cheesy, hearty, and ideal for holiday brunch or feeding a crowd. Recipe on SipBiteGo.com.
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Servings: 8 servings
Calories: 498kcal
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Ingredients
- ½ medium yellow onion diced
- 1 tbsp salted butter
- 1 lb ground pork sausage sage flavor
- 3 tbsp maple syrup
- 6 eggs
- 1½ cups half and half
- ½ tsp salt
- 6 slices bread toasted and cut into cubes
- 1 cup cheddar cheese shredded
- 1 cup Gruyère cheese shredded (or substitute mozzarella)
Instructions
- Grease a 9×13 baking dish with butter and set aside.
- In a large skillet over medium-high heat, melt the butter and add the diced onion. Cook for about 5 minutes, stirring occasionally, until softened and just starting to turn golden.
- Push the onions to one side of the pan and add the sausage to the other side. Break it down to bite-sized pieces and cook for 5–10 minutes, stirring occasionally, until fully browned. Near the end, stir onions and sausage together.
- Turn off the heat and drain any excess grease if needed (I usually don’t). Stir the maple syrup into the sausage and onion mixture.
- In a large bowl, whisk together the eggs, half and half, and salt. Add the sausage mixture, toasted bread cubes, cheddar cheese, and Gruyère. Stir until everything is evenly combined and the bread is well coated.
- Pour the mixture into the prepared baking dish. Cover with foil and refrigerate for 1 hour or overnight. (Sometimes I don’t have time to chill it before baking, and honestly, it comes out just fine!)
- When ready to bake, preheat the oven to 350°F. Bake covered with foil for 50 minutes.
- Remove the foil, reduce the oven temperature to 325°F, and bake for another 15–25 minutes, until the eggs are set and the center is no longer runny. Let the casserole rest for about 5 minutes before slicing. Cut into squares and serve.
Notes
Make-ahead tip: This casserole can be assembled and refrigerated overnight before baking.
If baking straight from the fridge, let it sit at room temperature for about 20–30 minutes before placing it in the oven. You may also need to add an extra 5–10 minutes to the baking time to ensure the center is fully set.
Nutrition
Calories: 498kcal | Carbohydrates: 18g | Protein: 25g | Fat: 36g | Saturated Fat: 16g | Polyunsaturated Fat: 4g | Monounsaturated Fat: 13g | Trans Fat: 0.2g | Cholesterol: 216mg | Sodium: 902mg | Potassium: 327mg | Fiber: 1g | Sugar: 8g | Vitamin A: 724IU | Vitamin C: 1mg | Calcium: 375mg | Iron: 2mg
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