Brown ground beef with onion and garlic, salt and pepper to taste. Drain meat and place in 9x13" pan.
Stir in soup and ¾ can of water. Spread cheese over top of meat. Top with tator tots. Do not bake now.
To Freeze: Freeze in a dish that can go from the freezer to the oven.
To Reheat:
Cover with foil and bake FROM FROZEN at 350 degrees F for 45 minutes (this is to avoid overbrowning tots).
Remove foil and continue cooking for another 15 minutes.