2 lbs. ground beef
1 (8 oz.) can pineapple slices, saving syrup
Sliced cheese

Shape 8 hamburger patties. On 4 of them top each 1 with 1 slice of pineapple. Top pineapple with sliced cheese. Take the other 4 hamburger patties and put on top of each with the pineapple slices. Seal edges tightly. Pour pineapple juice over patties after they are put into a baking dish. Bake, uncovered at 350 degrees until patties are to desired doneness.