There’s nothing quite like waking up to a warm slice of Tater Tot Sausage Breakfast Casserole — a hearty breakfast dish that’s cheesy, comforting, and perfect for feeding a crowd. This easy breakfast casserole recipe combines savory sausage, crispy tater tots, eggs, and melty cheese all baked into one satisfying breakfast or brunch dish. Whether you’re serving family on a weekend morning or preparing a make-ahead meal for guests, this breakfast casserole always delivers delicious results.

Why You’ll Love This Breakfast Casserole

This tater tot sausage breakfast casserole checks all the boxes: simple ingredients, minimal prep, and rich flavors that everyone loves. It’s also freezer-friendly, can be made ahead, and works just as well for lunch or dinner — that’s versatility!

Golden baked tater tot casserole with melted cheese and seasoned ground beef in a white ceramic baking dish.

Ingredients You’ll Need

To make this casserole, you’ll gather:

1 pound breakfast sausage (hot or mild)
1 (30 oz) bag of frozen tater tots
1½ cups shredded cheddar cheese
1 cup shredded mozzarella cheese
8 large eggs
2 cups milk (whole or 2%)
½ teaspoon garlic powder
½ teaspoon onion powder
Salt and pepper to taste

Bonus: No need to thaw the tots — they go in frozen!

Step-by-Step Instructions

Preheat your oven to 350°F. Lightly grease a 9×13 baking dish.
Cook the sausage in a skillet over medium heat until browned. Break it up with a spatula and drain off any excess fat.
Mix sausage, frozen tater tots, and cheeses in a large bowl, then pour into your prepared dish.
Whisk together the eggs, milk, garlic powder, onion powder, salt, and pepper.
Pour the egg mixture evenly over the tater tot and sausage mixture.
Bake uncovered for 60–70 minutes, or until the eggs are fully set and the top is golden brown.

Let it cool for 5–10 minutes before slicing. The crusty edges? That’s where the flavor magic happens.

Make-Ahead & Freezer Tips

Make Ahead: Assemble the casserole the night before, cover tightly with foil or plastic wrap, and refrigerate overnight. In the morning, just bake as directed.
Freeze for Later: You can freeze the unbaked casserole, wrapped tightly in foil and plastic wrap. Thaw in the fridge overnight before baking.
Leftovers: Store in an airtight container in the fridge for up to 4 days. Reheat in the oven or microwave.

Serving Suggestions

This breakfast casserole is pretty much a one-pan wonder, but here are a few ideas to round out the meal:

A bowl of fresh fruit or mixed berries
Buttery biscuits or toast on the side
Hot sauce or salsa for extra zing
A fresh spinach salad for brunch vibes

This hearty tater tot sausage breakfast casserole is loaded with melty cheese, savory sausage, and crispy tots—perfect for weekend brunches or meal prep mornings.

Recipe Variations to Try

Want to tweak the recipe or change up the flavors? Here are a few fun twists:

Use spicy chorizo instead of sausage
Add sautéed bell peppers or mushrooms for a veggie boost
Swap in hash browns instead of tater tots
Sprinkle cooked bacon on top before baking
Try pepper jack cheese for a little heat

Also, if you’re into slow-cooked breakfasts, you might love an easy crockpot breakfast casserole for busy mornings. And for even more cheesy comfort, a cheesy sausage breakfast casserole brings serious flavor. Want a potato twist? Try a sausage hashbrown breakfast casserole for a crispy golden crust that pairs perfectly with eggs.

Final Thoughts

This Tater Tot Sausage Breakfast Casserole is the breakfast of champions — cozy, filling, and totally make-ahead friendly. Whether you’re hosting brunch or just want to keep things easy on a Saturday morning, this dish will win everyone over.