Fruit Pizza from Camille

Cream:
1/2 cup margarine
1/2 cup shortening
1 1/2 cup sugar
2 eggs
Then add:
2 3/4 cup flour
1 tsp soda
2 tsp cream of tartar
1/4 tsp salt
Press into pan and bake 10 minutes at 400 degrees. Cool

Frosting
Mix:
8 oz cream cheese
1/2 cup sugar
2 tsp lemon juice
Spread on cooled crust. Decorate with fresh fruit