Pumpkin Pie Dessert
["1 c. flour", "1/2 c. brown sugar", "1/2 c. oatmeal", "1/2 c. margarine"]
["Crumble and press in bottom of cake pan.", "Bake at 350\u00b0 for 15 minutes."]
["flour", "brown sugar", "oatmeal", "margarine"]