Fruity Walnut Salad
["2 heads lettuce, cleaned and torn into pieces", "1 to 1 1/2 lb. fresh spinach, cleaned", "2 seedless oranges, peeled and sectioned", "1/2 c. red onion, thinly sliced", "1/2 c. walnuts, chopped", "2 tsp. butter or margarine"]
["In a large bowl, combine the lettuce, spinach, oranges and onion. Using a saucepan, saute the walnuts in butter until lightly browned and add to the lettuce mixture."]
["heads lettuce", "fresh spinach", "oranges", "red onion", "walnuts", "butter"]