Tater Tot Sausage Breakfast Casserole is a hearty, crowd-pleasing dish that combines crispy tater tots, savory sausage, and melted cheese all baked together into one satisfying meal. The crispy texture of the tots pairs perfectly with the rich, flavorful sausage and fluffy eggs, making it a great way to start the day.
I love making this casserole when I want something that’s easy to prepare but feels special enough for a weekend breakfast or brunch. One of my favorite things about it is how you can customize it by adding your favorite veggies or swapping types of cheese. Plus, it holds up really well if you want to make it ahead and reheat it later.
When I serve this casserole, I usually pair it with a simple side of fresh fruit or a green salad to balance out the richness. I’ve made this dish for family gatherings and everyone always asks for seconds—it’s that kind of comfort food that fills you up and makes the morning feel a little brighter.
Key Ingredients & Substitutions
Tater Tots: These give the casserole its crispy, golden base. You can swap with frozen hash browns or diced roasted potatoes if tater tots aren’t available.
Breakfast Sausage: I like mild pork sausage, but spicy sausage adds a nice kick. For a lighter option, use turkey sausage or vegetarian sausage crumbles.
Eggs & Milk: Eggs provide the rich, fluffy texture that holds everything together. You can use any milk type – dairy or plant-based – depending on your preference.
Cheddar Cheese: Sharp cheddar melts well and adds flavor. Try Monterey Jack, Colby, or a cheese blend if you want something a bit different.
Green Onions: They add a fresh, mild onion taste and a pop of color on top. You can use chives or thinly sliced red onion instead.
How Can I Get Crispy Tater Tots and a Set Casserole Without Overcooking?
The goal is crispy tots on top but a fully cooked custard underneath, without drying out the casserole.
- Use frozen tater tots straight from the bag to keep their shape and texture.
- Cook the sausage first to drain fat; too much grease can make the casserole soggy.
- Whisk eggs and milk thoroughly for an even base.
- Bake uncovered so steam escapes, helping tots get crispy.
- Check doneness by making sure eggs are fully set—not runny—usually around 45-50 minutes.
- Let the casserole cool for a few minutes; it firms up and is easier to slice.

Equipment You’ll Need
- 9×13 inch casserole dish – It’s the perfect size to hold all the ingredients and bake evenly.
- Skillet – For cooking and crumbling the sausage, making sure it’s browned nicely.
- Whisk or fork – To mix the eggs, milk, and seasonings smoothly.
- Measuring cups and spoons – For accurate ingredient amounts.
- Silicone spatula or spoon – To spread the ingredients and serve easily.
Flavor Variations & Add-Ins
- Switch sausage for diced cooked bacon or ham to add a smoky flavor.
- Use a different cheese like Monterey Jack or pepper jack for a milder or spicier taste.
- Add chopped bell peppers, spinach, or mushrooms to include more vegetables.
- Sprinkle with hot sauce or paprika before baking for a little extra kick.
How to Make Tater Tot Sausage Breakfast Casserole
Ingredients You’ll Need:
Main Ingredients:
- 1 (32 oz) bag frozen tater tots
- 1 lb breakfast sausage (mild or spicy, as preferred)
- 8 large eggs
- 1 cup milk
- 2 cups shredded cheddar cheese, divided
- 1/2 cup chopped green onions (plus extra for garnish)
- 1/2 tsp salt
- 1/4 tsp black pepper
- Optional: 1/2 tsp garlic powder or onion powder for extra flavor
How Much Time Will You Need?
This casserole takes about 15 minutes to prep and around 45-50 minutes to bake. In total, you’ll need just under an hour for a delicious, ready-to-serve breakfast.
Step-by-Step Instructions:
1. Prepare the Oven and Dish:
Preheat your oven to 350°F (175°C). Lightly grease a 9×13 inch casserole dish or a similar baking dish to prevent sticking.
2. Layer the Tater Tots:
Spread the frozen tater tots evenly across the bottom of the casserole dish. No need to thaw them—they’ll cook right in the oven.
3. Cook the Sausage:
In a skillet over medium heat, cook the breakfast sausage until browned and crumbly. Drain any excess grease, then evenly spread the sausage over the tater tots.
4. Mix the Egg Mixture:
In a large bowl, whisk together the eggs, milk, salt, pepper, and optional garlic or onion powder until smooth. Stir in 1 ½ cups of shredded cheddar cheese and the chopped green onions.
5. Assemble and Bake:
Pour the egg mixture evenly over the layered tater tots and sausage in the casserole dish. Sprinkle the remaining ½ cup of cheddar cheese on top.
Bake uncovered for 45-50 minutes, or until the casserole is set in the middle and the cheese is melted and golden.
6. Garnish and Serve:
Once baked, garnish with extra chopped green onions. Let the casserole cool for a few minutes—it will be easier to slice and serve. Enjoy with fresh fruit or a light side salad for a complete meal!
Can I Use Pre-Cooked or Frozen Sausage?
Yes! If you have pre-cooked or frozen sausage, just make sure it’s fully thawed and heated through before adding it to the casserole. This helps keep the texture and flavor just right.
Can I Make This Casserole Ahead of Time?
Absolutely! Assemble the casserole the night before, cover it tightly, and refrigerate. In the morning, bake it as directed, adding a few extra minutes if baked straight from the fridge.
How Should I Store Leftovers?
Store leftovers in an airtight container in the fridge for up to 3 days. Reheat individual portions in the microwave or oven until warmed through.
Can I Add Vegetables to This Recipe?
Definitely! Add chopped bell peppers, spinach, mushrooms, or even diced tomatoes to the sausage layer before pouring the egg mixture. Just sauté harder veggies first to soften them.
