Preheat oven to 350°.

In a large frying pan, saute turkey, onion and mushrooms until meat is cooked through and vegetables are tender. Toss in can of soup and stir.

Pour meat mixture into the bottom of a 3qt casserole dish. Top with frozen tater tots (as much as you'd like). Sprinkle cheese over the top.

Bake for 35 minutes, or until tater tots are golden.