Tuna Rio Grande
["2 Tbsp. butter or margarine", "1/2 c. chili sauce", "1 can (13 1/2 oz.) tuna, drained", "1 c. shredded cheese", "1 (12 oz.) pkg. corn muffin mix"]
["Melt butter or margarine in square baking dish.", "Stir in chili sauce.", "Crumble tuna into the chili and margarine.", "Top with cheese, then with prepared muffin mix.", "Bake 25 to 30 minutes at 375\u00b0.", "Cut into squares.", "Serves 4 to 6."]
["butter", "chili sauce", "tuna", "shredded cheese", "corn muffin"]