- 3¼ lb broccoli florets, cut into 1.5 inch pieces
- 3½ zucchini, sliced into half-moons
- 3½ red bell pepper, cut into 1 inch pieces
- 1½ red onion, cut into wedges
- 6½ tbsp olive oil
- 2½ tsp salt
- ¾ tsp black pepper
- 1⅔ tsp garlic powder
- 3½ pinch red pepper flakes, optional