Preheat oven to 450 degrees F. Place pizza crust on a 12-inch pizza pan or a baking sheet. Bake for 8 minutes. Carefully spread pizza sauce onto the pizza crust. Top with chopped kale, mozzarella cheese, pineapple, and bacon. Bake for 5 to 8 minutes more or until the crust is golden brown and the cheese is melted. Cut into eight slices.