Mango Cream Cheese Pizza

1 (12-inch) read-made pizza crust
    or homemade, if desired
1 tablespoon olive oil
1 (13.5 ounce) container cream cheese fruit dip
1 (26 ounce) jar mango slices, drained and chopped
1/2 cup chopped walnuts

Bake pizza crust according to package directions. Brush crust with olive oil. Spread cream cheese over crust. Arrange chopped mango over the cream cheese, and sprinkle with nuts. Slice and serve.