Pineapple Au Gratin
["2 (15 oz.) cans pineapple chunks, drained", "1 c. sharp Cheddar cheese, grated", "1 c. Velveeta cheese, cut into small cubes", "1 c. sugar", "6 Tbsp. flour", "1 1/2 c. Ritz cracker crumbs", "1 stick margarine, melted"]
["Combine pineapple and cheese.", "Mix sugar and flour.", "Stir into pineapple-cheese mixture. Put into casserole dish."]
["pineapple", "Cheddar cheese", "Velveeta cheese", "sugar", "flour", "cracker crumbs", "margarine"]