Preheat oven to 375°. Cream shortening, peanut butter and sugars until light and fluffy. Beat in eggs and vanilla. Add flour and mix well. Pat into a greased 12-in. pizza pan. Bake 16 minutes.
Sprinkle with marshmallows and chocolate chips; bake until lightly browned, about 3-5 minutes longer.
Can’t get this off my mind! Need it in my tummy!