1. Preheat oven to 450 degrees.
2. To prepare the pizza, first spread the tomato paste on the pizza crust.
3. Sprinkle the mozzarella cheese generously on top of it.
4. Arrange the sliced chicken pieces, followed by the vegetables and again top with mozzarella cheese.
5. Bake for about 15-16 minutes until the cheese melts and starts to brown at the edges.