Heat oven to 400 degrees Fahrenheit.
Wash and trim the ends from 1 lb. of fresh green beans.
Cut 1 lb. of boneless, skinless chicken breasts in half. This will ensure that everything cooks evenly.
Place the green beans on a baking sheet. Nestle the chicken breasts in between the green beans. Drizzle 3 Tbsp. of olive oil over the chicken and green beans making sure to coat everything evenly.
Sprinkle 2 tsp. Italian seasoning, 1 tsp. each of garlic and onion powder, ½ tsp. red chili flakes, and ½ tsp. each of salt and pepper over the green beans and chicken. Make sure both sides of chicken are spiced.
Pour 1 12 oz. container of grape or cherry tomatoes over the sheet pan arranging them in between the green beans.
Place the baking sheet in the oven and cook for 30 minutes. (Cooking times may vary slightly. Feel free to check at the 25 minute mark and continue baking until the chicken is cooked through).The safe internal temperature for chicken is 165 degrees and may be checked using a food thermometer. Be sure not to overcook the chicken, or it will dry out.
Remove the baking sheet from the oven and sprinkle ½ cup of shredded or shaved Parmesan cheese over the top allowing it to melt slightly.
To Serve: Garnish with fresh basil or herb (fresh or dried) of choice.