Preheat oven to 375°. For crust, mix margarine, sugar, vanilla and egg until light and fluffy. Add flour and baking powder, mixing well.
Spread mixture about 1/8-inch thick on pizza pan, baking sheet or 9×13-inch pan. Bake 10 to 12 minutes or until lightly browned and then cool.
For spread, mix together cream cheese, sugar and vanilla. Spread on cooled cookie crust. Arrange fruit on top of pizza. Refrigerate until serving time.