Chicken with Mushrooms & Peas

8 chicken thighs
2 Tbs EVOO
1 tsp fresh thyme
salt & pepper
8 oz mushrooms, halved
1 onion, coarsley chopped
1 (10 oz) pkg frozen peas

1.) Position rack in upper third of the oven & preheat to 400. On rimmed baking sheet, toss chicken with 1 Tbs EVOO, thyme & 1/2 tsp each salt & pepper; roast for 20 minutes.
2.) Meanwhile, in a medium bowl, combine mushrooms, onion, peas & remaining 1 Tbs EVOO; season with salt & pepper. Add veggies to chicken & cook 25 minutes more.