How the hot tray improves browning
This one-tray dinner staggers the ingredients so crisp-edged potatoes, tender carrots, browned chicken and fresh green beans all finish together. Smoked paprika and thyme create plenty of flavor without a separate sauce.
Keeping a sheet-pan dinner from steaming
A cold, crowded tray produces pale food. Preheat a heavy metal tray, spread the first vegetables in one layer and use a second tray if necessary. Pat the chicken dry before seasoning and never place the beans in at the beginning; their shorter cooking time needs a separate stage.
Staging vegetables by cooking time
Use a broad metal tray and cut the potatoes into 2–3 cm pieces. Bone-in thighs give the vegetables flavorful juices, but they must have space around them for the skin to crisp.
Why thighs and sturdy vegetables work best
Bone-in thighs tolerate the long roast needed by potatoes and carrots, while the skin contributes flavorful fat. Cut potatoes and carrots to a similar thickness, not merely a similar length. Green beans are deliberately added late so they remain green and lightly crisp rather than shriveling.
Other vegetables and seasonings
Use sweet potato, parsnip or bell pepper in place of carrots. Rosemary can replace thyme. Boneless thighs cook more quickly; add them after the vegetables have roasted for 15 minutes and begin checking after another 20.
Serving directly from the tray
Serve as it is, or add a green salad and a spoonful of mustard yogurt. Lemon wedges brighten the smoky seasoning.
Packing and reheating leftovers
Refrigerate for up to 3 days. Reheat on a tray at 190°C until the chicken is steaming hot. Freeze the cooked chicken for up to 2 months; potatoes are better kept refrigerated.