4 medium potatoes made into mashed potatoes (we boil the potatoes until fork tender, add 1/2 to 1 cup melted butter and some milk, and then use a hand mixer until smooth)
1/2 cup grated cheddar cheese (you could also use sliced cheese)
1 pound ground beef
1 can corn (you can use any vegetable you have, and if you're using frozen veggies, use 1-2 cups)
1 can cream of mushroom soup (or make the equivalent of white sauce)
Brown ground beef and drain. Combine browned beef, corn and cream of mushroom soup. Place in the bottom of an 8" x 8" casserole dish. Spread potatoes on top of beef mixture. Finish by sprinkling cheddar cheese over the top of the potatoes. Bake at 375 F for about 30 minutes, or until cheese is melted and warmed all the way through.