Wash and dry all produce. Preheat oven to 450 degrees and adjust racks to middle and upper positions. Peel ginger, then mince until you have 2 TBSP. Trim, then thinly slice scallions, separating greens and whites. Slice sweet potatoes into 1/4-inch-thick rounds. Cut broccoli florets into smaller, bite-sized pieces.

Toss broccoli with a drizzle of oil on a baking sheet and season with salt and pepper. Toss sweet potatoes with a drizzle of oil on a second baking sheet and season with salt and pepper. Roast sweet potatoes on upper rack and broccoli on middle rack of oven until tender, 20-25 minutes (we’ll check on everything halfway through).

Heat a drizzle of oil in a medium pan over medium-high heat. Pat chicken dry with a paper towel and season all over with salt and pepper. Add to pan and cook until no longer pink in center, 4-7 minutes per side. Remove from pan and set aside. TIP: If chicken is very browned before cooked, transfer to sheet with broccoli and let roast up to 5 minutes.

While chicken cooks, stir together hoisin, sriracha, honey, and 2 TBSP water in a small bowl. Once broccoli and sweet potatoes have roasted halfway, remove from oven. Flip sweet potatoes and return to oven. Toss broccoli with half the ginger and a drizzle of oil. Return to oven and continue roasting until both veggies are done, 10-15 minutes.

Heat a drizzle of oil in pan used for chicken over medium-high heat. Add scallion whites and remaining ginger to pan. Cook, tossing, until softened and fragrant, 2-3 minutes. Stir in hoisin mixture and bring to a gentle simmer. Season with salt and pepper. Return chicken to pan and toss to coat in glaze. Remove pan from heat.

Divide chicken between plates. Drizzle with any glaze in pan and sprinkle with sesame seeds and scallion greens. Serve with sweet potatoes and broccoli on the side.