Season chicken with salt and pepper while you prep your veg

Heat oil in cast iron or oven proof skillet, sear/brown chicken on both sides. Remove chicken and set aside.

Add the potatoes, garlic, seasoning, and dijon to the pan and mix everything together in the remaining oil.

Add the chicken back on top of the potatoes along with the lemon slices and place in 375°F oven for 30 min.

After 30 min, add the green beans to the dish and mix, place back in the oven for another 20 min or until chicken no longer pink and juices run clear. (I just threw a random chili in, but you don't need to)