Vidalia Onion Casserole
["1 c. crushed Ritz crackers (for crust)", "2 medium onions, cut in rings", "3/4 stick margarine", "1 egg", "1 can cream of mushroom soup"]
["Cover bottom of a 9 x 12-inch pan with crushed Ritz crackers. Saute onions in margarine; put on top of crushed crackers.", "Beat egg and pour into a 1-cup measuring cup.", "Fill remainder of cup with milk.", "Add this mixture to cream of mushroom soup; pour over onions.", "Sprinkle with crackers or cheese.", "Bake at 350\u00b0 for 3 minutes."]
["crackers", "onions", "margarine", "egg", "cream of mushroom soup"]