•Preheat the oven to 350° F. •Place chicken breasts in a baking dish. •Use a spoon to cover chicken with pesto. •Top each chicken breast with 1 slice of mozzarella cheese and 2 sliced tomatoes. •Bake for 30 minutes, or until chicken is no longer pink in the middle. Broil the chicken the final 2 minutes so that the cheese is bubbly and golden. •See a great video with more details of broiling meats https://www.youtube.com/watch?v=5aNYOQC3PNc