- 4¼ lb broccoli florets, cut into 1.5 inch pieces
- 4½ zucchini, sliced into half-moons
- 4½ red bell pepper, cut into 1 inch pieces
- 2 red onion, cut into wedges
- 8½ tbsp olive oil
- 3⅛ tsp salt
- 1 tsp black pepper
- 2⅛ tsp garlic powder
- 4½ pinch red pepper flakes, optional