Beef with milk

1 lb ground beef 1 large onion , diced 1 medium Tomato 1 (10 3/4 ounce) can cream of mushroom soup 8 -10 ounces processed cheese , cubed 1 (7 ounce) can diced[...]

1/2 lb sharp cheddar cheese 1/2 lb mild cheddar cheese (use block cheese from the deli, not slices or shredded) or 1/2 lb American cheese (use block cheese[...]

1 lb ground beef 1 egg , slightly beaten 3/4 cup corn chips, crushed 1/2 cup milk 2 teaspoons salt 2 1/2 tablespoons flour 2 tablespoons butter 2 cups onions[...]