Creating Tater Tot Casserole is simple with these easy-to-follow steps:

1. Preheat Oven: Start by preheating your oven to 350°F (175°C). Grease a 9×13 inch baking dish with cooking spray or oil.

2. Cook the Beef: In a skillet over medium heat, brown the ground beef and chopped onion. Cook until the beef is no longer pink, about 5-7 minutes. Drain excess fat.

3. Mix Ingredients: In a large bowl, combine the cream of mushroom soup, sour cream, garlic powder, salt, and black pepper. Add in the cooked beef and onions, stirring until evenly mixed.

4. Layer the Casserole: Pour the beef mixture into the prepared baking dish, spreading it out evenly. Sprinkle half of the cheddar cheese over the top.

5. Top with Tater Tots: Arrange the frozen tater tots in a single layer on top of the beef mixture.

6. Add More Cheese: Sprinkle remaining cheddar cheese over the arranged tater tots.

7. Bake: Place the casserole in the preheated oven and bake for 30-35 minutes, or until the tater tots are golden brown and the cheese is bubbly.

8. Cool and Serve: Once cooked, remove from the oven and let it cool for a few minutes before serving.

Following these straightforward instructions will yield an incredible Tater Tot Casserole that your family will love!