3/4 cup (1 1/2 sticks) butter
1 cup sugar
1 egg
1 cup mashed bananas
1/2 cup chopped walnuts (optional)
1 1/2 cups all-purpose flour
1/2 tsp. baking soda
1 tsp. salt
1 3/4 cups oatmeal

In a large mixing bowl, cream together the butter and sugar. Beat in the egg and mashed bananas. Stir in the oatmeal and walnuts. Gradually add the flour, baking soda and salt mixture; mix well. Drop heaping teaspoonfuls of dough on an ungreased cookie sheet about 3-inches apart. Bake at 400°F for about 15 minutes.