Preheat the oven to 400°F (200°C).

In a skillet, cook the ground beef until browned and drain excess fat.

Stir in the cream of mushroom soup and ranch seasoning until well combined.

In a casserole dish, layer the beef mixture, followed by the tater tots and then sprinkle with cheddar cheese.

Bake in the preheated oven for 25-30 minutes until the tater tots are golden brown.