Turkey Tetrazzini
["1 (7 oz.) box spaghetti", "2 c. cubed cooked turkey", "1 c. (4 oz.) shredded Cheddar cheese", "1 can condensed cream of mushroom soup (undiluted)", "1 medium onion", "2 cans (4 oz.) sliced mushrooms, drained", "1/3 c. milk", "1/4 c. chopped green pepper", "1 (2 oz.) jar chopped pimento", "1/4 tsp. salt", "1/8 tsp. pepper"]
["Break spaghetti in 2-inch pieces.", "Additional cheese optional. Cook spaghetti according to package directions; drain.", "Transfer to large bowl.", "Add next 10 ingredients and mix well.", "Spoon into a greased 2 1/2-quart casserole.", "Sprinkle with cheese, if desired. Bake, uncovered, at 375\u00b0 for 40 to 45 minutes or until heated through."]
["turkey", "Cheddar cheese", "condensed cream", "onion", "mushrooms", "milk", "green pepper", "pimento", "salt", "pepper"]