Step 1: Preheat your oven to 400°F (200°C).
Step 2: Wash and trim the green beans. Place them on the sheet pan and drizzle with 1 tablespoon of olive oil. Sprinkle with salt and pepper to taste, then toss to coat.
Step 3: In a mixing bowl, combine the remaining olive oil, garlic salt, and Italian Panko breadcrumbs. Season the chicken breasts with salt and pepper, then spread 1 tablespoon of sun-dried tomato pesto on each breast.
Step 4: Place the chicken breasts on the sheet pan alongside the green beans. Evenly distribute the breadcrumb mixture over the chicken.
Step 5: Top each chicken breast with a slice of mozzarella cheese.
Step 6: Bake for 20-25 minutes until the chicken is cooked through and the cheese is bubbly.
Step 7: Let it rest for a few minutes before serving.