Cut potatoes in half and slice the red onion. Add them to a mixing bowl with the green beans, olive or avocado oil, and seasonings.
Add all the veggies to a sheet pan with the two chicken breasts (also seasoned with your favorite seasonings).
Bake for 22- 30 minutes or until chicken reaches 165F.
Notes
Leftovers: Store in airtight container for up to 3 days
No Green beans: Use another vegetable such as brussel sprouts or zucchini
Seasoning/Flavor: Season chicken with lemon and lemon zest, garlic powder, and/or fresh herbs like thyme or rosemary