- 4¾ lb broccoli florets, cut into 1.5 inch pieces
- 5 zucchini, sliced into half-moons
- 5 red bell pepper, cut into 1 inch pieces
- 2½ red onion, cut into wedges
- 9½ tbsp olive oil
- 3½ tsp salt
- 1⅛ tsp black pepper
- 2⅓ tsp garlic powder
- 5 pinch red pepper flakes, optional