How to Make It
Heat oven to 450° F with a rack in the highest position. Toss the potatoes with the oil and ½ teaspoon each salt and pepper on a rimmed baking sheet. Season the chicken with the caraway seeds, mustard, and ¼ teaspoon each salt and pepper.
Nestle the chicken skin-side up in the potatoes and roast, tossing the potatoes once, until the potatoes are tender and an instant-read thermometer inserted in each thigh registers 165º F, 25 to 30 minutes.
Add the peas to the chicken and potatoes and continue to roast until warmed through, 2 to 3 minutes. Drizzle with the lemon juice.
Sprinkle with the dill and serve with the lemon wedges.