Cheap, easy and great for lunch the next day. A favourite of mine and my kids.

Meat Loaf
Meat Loaf (note the gap on the right side to catch oil and
grease from the meat - drain before serving)

1 can tomato or golden mushshoom soup or a cup to a cup and a half of ketchup
2 pounds ground beef
1/2 cup dry bread crumbs or crushed soda crackers
1/3 cup chopped onion
1 egg slightly beaten
1 teaspoon salt
1/3 cup water

Mix 1/2 of the soup (or ketchup), beef, beef, crumbs, onions, egg and salt.  Shape into loaf pan.  Leave a gap of about an inch at the end of the loaf pan. While the loaf cooks a lot of the grease and fat from the ground beef will pool here and can be drained off after cooking. Pour the remaining soup (or ketchup) over the top of the loaf and then bake at 375 F for 1 hour and 15 minutes.