1 1/2 pounds ground chuck
1 medium onion, sliced or chopped
2 can tomato sauce
2 cans favorite vegetables, drained
2 quarts prepared mashed potatoes
1 small package shredded cheese
2 quart casserole dish

Set oven to 350 degrees.  Cook and drain hamburger and onions, salt and pepper; mix in tomato sauce.  Put vegetables in bottom layer of dish.  Put hamburger mix on top of vegetables for the second layer.  Spread mashed potatoes over hamburger mix for third layer.  Sprinkle cheese on top and bake for 30 to 45 minutes until potatoes are lightly crusted and cheese is melted.  Potatoes can be instant or leftover.  Serve hot.