Leftover Mashed Potatoes and Ham

4 c. mashed potatoes
1 c. diced cooked ham
1 small onion, diced
3 tbsp. margarine/butter
2 eggs well beaten
1/2 c. grated cheese (optional)

Mix potatoes with eggs, and butter till well mixed. Stir in the ham and
onion. Place in a greased casserole dish or baking pan size 9x11 inches.
Sprinkle with grated cheese or dobs of margarine and bake at 350 F for
30 minutes.