Email to Roseann Krul Recipe Categories: RMKrul's HOME PAGEAPPETIZERS BEVERAGES BREAD BREAKFAST CAKESandPIES CASSEROLES DESSERTS EGGS MEATS POULTRY RICE SALADandDRESSING SNACKS SOUPSandSTEWS VEGETABLES Irish Casserole Source of Recipe Linda Regan List of Ingredients 3 15 oz. cans baked beans 1 lb hamburger (pre-cooked) Cheddar cheese or colby cheese 16 oz. fresh mushrooms 1 lb potatoes 1 T sweet onion mustard Instructions Mix in casserole dish. Bake at 350 degrees for 40 minutes.