CHEESE ONION CASSEROLE 2 tsp Butter or margarine 5 med Onions thinly sliced and Separated into rings 2 c Shredded cheddar cheese 1/3 c Packaged biscuit mix 1/8 t Pepper 1/2 c Shredded cheddar Preheat oven to 350 F and grease a 1 1/2 quart casserole dish. In a large saucepan, melt the butter or margarine. Add the onions and cook, covered over medium-low heat 10 -15 minutes or until tender, stirring occasionally. Remove from heat. Stir the 2 cups cheddar cheese, the biscuit mix, and pepper into the onion mixture. Transfer the mixture to the prepared casserole dish. Sprinkle with the 1/2 cup cheddar, if desired. Bake uncovered in the 350 oven for 30 minutes.