Preheat oven to 350 degrees.
Line 9x12 inch casserole dish with layer of Tater Tots.
Salt and pepper to taste.
Mix hamburger with cream of mushroom soup and water.
Spread mixture over Tater Tots.
Place another layer of Tater Tots on top of hamburger mixture.
Cover with grated cheese.
Bake for 35-40 minutes until mixture bubbles.