Preheat oven to 425°F.
Line a large sheet pan with foil, and add 1 Tbsp. of olive oil.
Arrange chicken pieces and potatoes over the pan.
Season with sea salt, pepper, and garlic powder.
Brush honey and mustard over chicken, and bake for 25 minutes or until juices run clear and chicken is slightly browning on the ends.
Add broccoli and drizzle with remaining olive oil.
Cook for an additional 5 minutes, or until broccoli is slightly soft.
Sprinkle with shredded cheese (if desired) and serve immediately.