Chicken Tetrazzini(Low-Fat)  
["2 to 3 lb. skinless chicken breasts", "2 small onions", "salt", "1/4 tsp. pepper", "1 (16 oz.) pkg. spaghetti", "1/2 c. low-fat butter or margarine", "1/2 lb. mushrooms", "1 Tbsp. lemon juice", "1/2 c. all-purpose flour", "1/4 tsp. nutmeg", "1/2 tsp. paprika", "1 c. skim milk", "1 (3 oz.) jar nonfat Parmesan cheese", "1 Tbsp. salt"]
["About 2 hours before serving, in a large saucepot, place chickens, 1 onion, 1 tablespoon salt, pepper and water to cover. Over high heat, heat to boiling.", "Reduce heat to low; cover and simmer 30 minutes or until fork-tender."]
["chicken breasts", "onions", "salt", "pepper", "spaghetti", "low-fat butter", "mushrooms", "lemon juice", "all-purpose", "nutmeg", "paprika", "milk", "Parmesan cheese", "salt"]