CRUST:

1/2 c. (1 stick) butter, softened
1/3 c. sugar
1 c. quick oats
3/4 c. flour

1 (8 oz.) pkg. cream cheese, softened
1 c. sugar
3 eggs
1 (16 oz.) can solid pack pumpkin
1/2 c. Karo light syrup
2 tsp. cinnamon

Heat oven to 350 degrees. Grease 13 x 9-inch baking pan. Beat butter and sugar until fluffy. Add combined oats and flour, mix well. Spread evenly onto bottom of pan. Bake 18-20 minutes or until light golden brown. Cool slightly. Beat cream cheese and sugar on medium speed until fluffy. Add eggs one at a time beating well after each egg. Add pumpkin, Karo syrup, and cinnamon, mix until smooth. Pour over partially cooled crust. Bake an additional 45-50 minutes or until center appears set. Cool completely on wire rack. Chill. Serve with whipped topping if desired.