Potatoes and Ham

4 Cups mashed potatoes (with butter and milk)
1 pkt ranch dressing mix, dry
1 cup half and half or heavy cream
1 ½ cup diced ham
shredded cheese

Mix mashed potatoes with ranch dressing. Lightly greese 9x9 pan with butter. Spread mashed potato mixture in pan. Poor cream over potatoes. Evenly spread ham cubes over potatoes and cream. Top with cheese. Cook on 350 for 45 min.