Savory Chicken Tarragon
["1/4 c. margarine or butter", "1/2 c. sliced onion", "2 cloves garlic, peeled and minced", "1 1/2 c. diced, cooked chicken (about 1 lb. boneless chicken)", "1 1/2 c. sliced carrots", "1/3 c. chopped fresh parsley", "3/4 tsp. dried tarragon leaves", "1/4 tsp. ground black pepper", "2 1/2 c. plus 2 Tbsp. water, divided", "1 3/4 c. chicken broth (homemade or one 14 1/2 oz. can)", "1 3/4 tsp. lemon juice", "3 c. pasta (rotini, twirls or curly-roni, uncooked; 8 oz.)", "2 Tbsp. all-purpose flour"]
["Melt margarine in a 4-quart saucepan; add onion and garlic and saute for 1 minute. Add chicken, carrots, parsley, tarragon and pepper; cook until chicken is lightly browned."]
["margarine", "onion", "garlic", "chicken", "carrots", "parsley", "tarragon", "ground black pepper", "water", "chicken broth", "lemon juice", "pasta", "flour"]