This Tater Tot Sausage Breakfast Casserole is the ultimate morning treat! It’s packed with crispy tater tots, savory sausage, and creamy eggs, all baked to golden perfection.
What more could you want for breakfast? I love how it comes together quickly, and it’s always a hit at brunch! Plus, it’s a great way to feed a crowd without breaking a sweat. 😊
Key Ingredients & Substitutions
Breakfast Sausage: I prefer using breakfast sausage for its flavored profile. If you’re looking for healthier options, turkey sausage works great. For a vegetarian twist, you can use plant-based sausage.
Onions: Using a half medium onion adds a nice flavor base. If onions aren’t your thing, feel free to skip them or replace them with some finely chopped bell peppers for a sweet touch.
Cheddar Cheese: Cheddar cheese brings a rich flavor to the casserole. You can substitute it with any cheese you like, such as Monterey Jack or a blend of cheeses for something extra melty. Just make sure it’s a good melting cheese!
Tater Tots: The star of the dish! While I prefer classic frozen tater tots, hash browns can be used for a different texture. Just keep an eye on the cooking time, as they may bake differently.
Eggs: Large eggs are best for this recipe. If you’re watching cholesterol, you can replace some whole eggs with egg whites or use a custard mix.
How Do I Ensure My Casserole is Cooked Perfectly?
Cooking the casserole just right is essential for a tasty breakfast. Here are a few tips to help you out:
- Don’t rush the baking time! Bake until the eggs are set and tater tots are nicely golden. This usually takes about 35-40 minutes.
- If you’re unsure if it’s done, use a knife in the center. If it comes out clean, you’re good to go!
- Letting it cool for a few minutes after baking helps it to firm up, making serving easier.
- If the top starts browning too quickly, cover it with foil during the last few minutes of baking.

Tater Tot Sausage Breakfast Casserole
Ingredients You’ll Need:
- 1 pound breakfast sausage (mild or spicy as preferred)
- 1/2 medium onion, finely chopped
- 2 cups shredded cheddar cheese
- 12 ounces frozen tater tots
- 8 large eggs
- 1 cup milk
- 1/2 teaspoon salt
- 1/4 teaspoon black pepper
- 1/2 teaspoon garlic powder (optional)
- 1/4 teaspoon dried thyme or chives (optional for garnish)
- Cooking spray or butter (for greasing the pan)
How Much Time Will You Need?
This delicious casserole will take about 15 minutes to prepare, followed by 35-40 minutes baking time. So, in about an hour, you’ll have a warm, cheesy breakfast ready to be enjoyed!
Step-by-Step Instructions:
1. Preheat the Oven:
Start by preheating your oven to 375°F (190°C). While it’s heating, grease your 9×13 inch baking dish with cooking spray or butter to keep everything from sticking.
2. Cook the Sausage and Onions:
In a large skillet over medium heat, add the breakfast sausage along with the chopped onion. Cook this mixture until the sausage is browned and the onions are soft, which should take about 5-7 minutes. Be sure to drain any excess grease afterward to keep it light and tasty.
3. Assemble the Casserole:
Spread the cooked sausage and onions evenly at the bottom of your greased baking dish for a flavorful base. Next, layer the frozen tater tots evenly over the sausage mixture. It should look nice and colorful!
4. Add Cheese:
Sprinkle 1 1/2 cups of shredded cheddar cheese evenly over the tater tots. This is what will make your casserole ooey-gooey and delicious!
5. Mix the Egg Mixture:
In a separate bowl, crack the 8 large eggs and add the milk, salt, pepper, and garlic powder if you’re using it. Whisk everything together until it’s well combined.
6. Pour the Egg Mixture:
Carefully pour the egg mixture evenly over the casserole, making sure it covers all the tater tots and sausage. This will bind everything together beautifully while baking.
7. Top with Remaining Cheese:
Sprinkle the remaining 1/2 cup of cheddar cheese over the top of the casserole, because more cheese is always a good idea!
8. Bake it Up:
Place the casserole in your preheated oven and bake it for about 35-40 minutes. You’ll know it’s ready when the eggs are set and the tater tots are golden brown. Your kitchen will smell amazing!
9. Garnish and Serve:
If you’d like, you can sprinkle some dried thyme or fresh chives on top for a pop of color and extra flavor. Once done, let the casserole cool for a few minutes before slicing and serving warm. Enjoy your hearty and comforting Tater Tot Sausage Breakfast Casserole!
Can I Use Frozen Tater Tots?
Absolutely! Frozen tater tots are perfect for this recipe. There’s no need to thaw them beforehand; just layer them directly from the freezer into the casserole.
How Can I Store Leftovers?
Leftover casserole can be stored in an airtight container in the refrigerator for up to 3 days. To reheat, simply warm it in the microwave or oven until heated through.
Can I Make This Casserole Ahead of Time?
Yes! You can prepare the casserole the night before and refrigerate it. Just cover it tightly and add an extra 5-10 minutes to the baking time in the morning since it will be chilled.
What Can I Substitute for Breakfast Sausage?
If you’re looking for a healthier option, ground turkey or chicken sausage works well. For a vegetarian option, try using plant-based sausage or sautéed mushrooms for a hearty texture.
