In a large mixing bowl, combine the cooked beef mixture with the drained corn, drained and rinsed black beans, cream of mushroom soup, shredded Colby Cheddar cheese, skim milk, and sour cream. Mix well until all ingredients are evenly combined. This mixture forms the flavorful base of your casserole.
Step 4: Layer in Baking Dish
Pour the combined mixture into the prepared baking dish, spreading it out evenly to ensure that every bite is packed with flavor. This step is crucial for even cooking and flavor distribution.
Step 5: Top with Tater Tots
Arrange the frozen tater tots in a single layer over the top of the casserole mixture. The tater tots not only add a delightful crunch but also soak up some of the flavors from the casserole as they bake.
Step 6: Bake
Place the casserole in the preheated oven and bake for 45-50 minutes. You’ll know it’s ready when the tater tots are golden brown and crispy, and the casserole is bubbly around the edges. This baking time allows all the flavors to meld together and ensures the tater tots are perfectly cooked.
Step 7: Serve
Remove the casserole from the oven and let it cool slightly before serving. This brief cooling period helps the casserole set, making it easier to cut and serve. Garnish with chopped parsley or green onions if desired, for a pop of color and added freshness.
