Preheat oven to 350 degrees. Combine flour, oats, baking soda, and salt. Cream butter gradually. Add egg and vanilla. Mix well. Alternate additions of dry ingredients and pumpkin, mixing well after each addition. Stir in chocolate chips. Drop dough onto lightly greased cookies sheet. Bake 15 minutes or until cookies are firm and lightly browned. Remove and cool.
Options: Add Raisins, dates, or bake plain cookie dough.