Chicken And Bow Tie Pasta(Serves 4 To 5 Hungry People)  
["16 oz. pkg. bow tie pasta", "16 oz. fresh or frozen green beans", "4 Tbsp. olive oil", "1 1/2 lb. skinless boneless chicken breasts, cut in 1-inch chunks", "1/2 c. finely chopped onion", "1/2 c. dry white wine", "1/2 c. chicken broth", "3 Tbsp. dried tarragon", "1 c. sour cream or yogurt", "1/2 c. chopped fresh parsley (optional)", "freshly ground black pepper", "Parmesan cheese to taste"]
["Bring 4 quarts of water to a boil.", "Add pasta and beans. Cook 8 to 10 minutes, stirring frequently until just tender."]
["pasta", "olive oil", "chicken breasts", "onion", "white wine", "chicken broth", "tarragon", "sour cream", "fresh parsley", "freshly ground black pepper", "Parmesan cheese"]