Preheat your oven to 400F degrees.
In a large skillet, brown the ground beef and cook with the onion.
2 lbs ground beef, 1 big onion
When your beef is cooked, drain any excess grease from the skillet.
Next, stir in the beans, diced tomatoes with green chilies, and taco seasoning until well combined.
28 ounces diced tomatoes with green chilies, 15 ounces chili beans, ⅓ cup store-bought or homemade taco seasoning
Lightly spray your baking dish with non-stick cooking spray. Spread the chili mixture into the prepared dish.
non stick cooking spray
Add one cup of shredded cheese on top.
2 cups shredded cheddar cheese
On top of your casserole, spread the tater tots in one even layer over the casserole.
32 ounces bag frozen tater tots
Spray your tater tots with non-stick cooking spray and season with salt as needed.
kosher salt and black pepper, non stick cooking spray
Bake in a preheated oven for 35-40 minutes.
Remove from oven when the tater tots are crisp, and sprinkle the remaining cheese on top.
2 cups shredded cheddar cheese
Put back in the oven for an additional 5 minutes or until the cheese is fully melted.