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Tater Tot Sausage Breakfast Casserole

This Tater Tot Sausage Breakfast Casserole is a hearty, cheesy dish that’s perfect for busy mornings, weekend brunch, or even a simple dinner. Crispy tater tots combine with savory breakfast sausage, fluffy eggs, milk, and melted cheddar and mozzarella cheese to create a rich, comforting bake everyone loves. Garlic, onion, and black pepper add just the right amount of flavor to every bite. The best part is how convenient it is—you can assemble it ahead of time and refrigerate or freeze it until ready to bake. Whether you're feeding family or hosting brunch, this easy casserole delivers warm, satisfying comfort in every delicious serving.
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Prep Time 15 minutes
Cook Time 1 hour 9 minutes
Course: Brunch, Dinner, Main Course
Cuisine: American
Ingredients Method Notes

Ingredients
  

  • Ingredients
  • 2 pounds spicy breakfast sausage
  • 1 bag 30–32 oz frozen tater tots
  • 1 teaspoon salt
  • ½ teaspoon black pepper
  • ¼ teaspoon garlic powder
  • ¼ teaspoon onion powder
  • 1½ cups shredded cheddar cheese
  • ½ cup shredded mozzarella cheese
  • 8 large eggs
  • 2 cups milk

Method
 

Step 1: Prepare the Oven and Baking Dish

Set your oven to 350°F (175°C) so it can heat up while you assemble the casserole. Lightly coat a 9×13-inch baking dish with nonstick cooking spray or a thin layer of oil to prevent sticking.

    Step 2: Cook the Sausage

    Place the sausage in a large skillet over medium heat. Break it apart with a spatula as it cooks. Continue cooking until the meat turns fully browned and no pink remains. Drain off the extra grease and set the sausage aside.

      Step 3: Combine the Main Ingredients

      In a large mixing bowl, add the frozen tater tots, cooked sausage, shredded cheddar cheese, and mozzarella. Stir everything together so the ingredients are evenly mixed.

        Step 4: Assemble the Casserole

        Transfer the mixture into the prepared baking dish and spread it out evenly across the bottom.

          Step 5: Mix the Egg Custard

          In a separate bowl, whisk together the eggs, milk, salt, black pepper, garlic powder, and onion powder until smooth and fully combined.

            Step 6: Pour and Soak

            Slowly pour the egg mixture over the tater tot mixture, making sure it spreads evenly across the dish so every bite gets flavor.

              Step 7: Bake the Casserole

              Place the dish in the oven uncovered and bake for 60–70 minutes, or until the eggs are firm and the top looks golden and slightly crisp.

                Step 8: Cool and Serve

                Allow the casserole to rest for about 5–10 minutes before slicing. This helps it set and makes serving much easier.

                  Notes

                  Variations You Can Try

                  • Add vegetables: Bell peppers, spinach, mushrooms, or diced onions add extra flavor and color.
                  • Swap the cheese: Pepper jack, Monterey Jack, or Colby works beautifully.
                  • Use different meat: Bacon or ham can replace the sausage.
                  • Make it spicy: Add diced jalapeños or a pinch of red pepper flakes.

                  Useful Tips for the Best Casserole

                  Use frozen tater tots directly from the freezer. They crisp up perfectly during baking.
                  Drain the sausage well. Too much grease can make the casserole heavy.
                  Let the casserole rest before cutting. This keeps the slices neat and prevents the eggs from falling apart.

                  Common Mistakes to Avoid

                  • Overbaking the casserole. This can dry out the eggs. Remove it once the center is set.
                  • Skipping seasoning. Even with sausage, the eggs need a little salt and pepper for balance.
                  • Using too much liquid. Stick to the recommended milk amount so the casserole sets properly.

                  Frequently Asked Questions

                  Can I make this casserole ahead of time?
                   Yes. Assemble the casserole, cover it tightly, and refrigerate overnight. Bake it the next morning.
                  Can it be frozen?
                   Absolutely. Wrap the assembled dish well and freeze for up to 2 months. Thaw overnight in the fridge before baking.
                  How do I store leftovers?
                   Place leftovers in an airtight container and refrigerate for up to 4 days. Reheat in the microwave or oven.
                  Can I use mild sausage instead of hot sausage?
                   Of course. Mild, maple, or even turkey sausage works great.

                  Final Thoughts

                  This Tater Tot Sausage Breakfast Casserole is the definition of comfort food made easy. Crispy tots, savory sausage, fluffy eggs, and melted cheese come together in one satisfying dish that works for breakfast, brunch, or even a casual dinner. The best part? You can prepare it ahead of time and simply bake when you’re ready. Whether you’re feeding a hungry family or hosting weekend brunch, this hearty casserole is guaranteed to disappear fast.