Preheat the oven to 350°F (175°C). In a skillet, brown the ground beef over medium heat until fully cooked. Drain excess fat.

Add chopped onion and bell pepper to the skillet and sauté until softened, about 5 minutes.

Stir in the corn, black beans, cream of mushroom soup, and half of the cheddar cheese. Mix well.

Transfer the mixture to a greased casserole dish.

Arrange the tater tots on top of the beef mixture in a single layer.

Sprinkle the remaining cheddar cheese on top of the tater tots.

Bake in the preheated oven for 30 minutes or until the tater tots are golden brown and crispy.

Let cool for a few minutes before serving.