Place formed pizza dough (circle or oblong) on a cookie sheet or pizza pan and bake for approximately 15 minutes or until golden.
In a small bowl combine the cooked shrimp, 2 tablespoons of mayonnaise and ketchup set aside.
Remove from oven, let sit 5 minutes then spread with 2 tablespoons of mayonnaise, top with salad greens and spoon the shrimp mixture evenly on top. Serve immediately.