Quick And Easy Tuna Casserole 1 (12 ounce) package egg noodles 2 cups peas, drained 2 (10.75 ounce) cans cream of mushroom soup 2 (6.5 ounce) cans tuna, drained 1 package dry onion soup mix 10 slices processed cheese Pepper to taste In pot of water, cook noodles until almost tender, drain. Return noodles to pot. Add peas. In bowl, combine soup, tuna, soup mix, cheese and pepper. Pour into pot. Heat, stirring constantly, until well mixed and cheese melts.