Cream Of Spinach Soup
["1 (10 oz.) pkg. frozen chopped spinach, thawed", "1/2 c. chopped onion", "2 Tbsp. butter or margarine, melted", "3 Tbsp. all-purpose flour", "1 qt. milk", "1/2 tsp. salt", "1/8 to 1/4 tsp. pepper"]
["Drain spinach thoroughly; set aside.", "Saute onion in butter in a large saucepan until tender and add flour, stirring until smooth.", "Cook 1 minute, stirring constantly.", "Gradually add milk and stir in spinach, salt and pepper.", "Cook over medium heat, stirring constantly, until mixture is thickened and bubbly.", "Makes about 1 quart."]
["onion", "butter", "flour", "milk", "salt", "pepper"]