Preheat your oven to 350°F (175°C).

In a large skillet, heat a splash of oil over medium heat. Add ground beef and chopped onion, cooking until the beef is browned and onions are translucent, about 8-10 minutes.

Stir in corn, cream of mushroom soup, cream of chicken soup, garlic powder, onion powder, salt, and pepper. Mix thoroughly for about 2 minutes until everything is combined and heated.

Transfer the mixture into a large baking dish, spreading it evenly.

Sprinkle shredded cheddar cheese generously over the beef mixture.

Arrange frozen tater tots in a single layer over the cheese.

Bake in the preheated oven for 35 minutes until the tater tots turn golden brown and crispy.

Let the casserole cool for a few minutes before serving.