Preheat oven to 350 degrees.
Press cookie dough evenly into greased 12-14 inch pizza pan.
Bake 12-14 minutes or until crust is light golden brown. Cool completely.
In a small mixing bowl, combine cream cheese, sugar, and vanilla and mix until smooth.
Spread cream cheese mixture evenly over crust.
Top with sliced bananas, sliced strawberries, and sliced pineapple.
Sprinkle with crushed nuts.
For chocolate ganache:
Bring cream just to a boil. Add chocolate and stir until completely melted.
Drizzle over pizza.
Serve immediately or soon after making.