This simple ham and noodle casserole gets saucy flavor with a simple mayonnaise and cheese sauce. A buttery breadcrumb mixture is a perfect finish, making a savory, crispy topping. It's an excellent use of leftover ham. Freeze leftover hamdiced or slicedin small portions for recipes like this. Wrap it tightly and put it in freezer bags. Freeze it for 1 to 2 months (usda recommendation). The recipe calls for frozen lima beans, but feel free to use steamed frozen peas, mixed vegetables, or a blend of peas and carrots. For extra color and flavor, add a tablespoon or two of chopped pimiento. Green onions are a good option for extra flavor as well. If you like more topping, double the breadcrumbs, and the melted butter. Add a tablespoon or two of parmesan cheese to the crumbs or season them with a dash of salt and some parsley, if you'd like.