I’m sharing my Grandma’s Ham, Pea, and Potato casserole today! It’s creamy, easy, delicious and 100% pure comfort food! It’s the perfect way to use up that leftover Holiday Ham too! Trust me when I say…you WANT leftover ham just so you can make this casserole! If ya want you can just call it “leftover ham” casserole. Grandma wouldn’t mind and neither do I!