Preheat oven to 400°F (200°C). In a large bowl, toss all the chopped vegetables with olive oil, dried oregano, dried basil, salt, and black pepper.
1 red bell pepper, 1 orange bell pepper, 1 yellow bell pepper, 1 zucchini
Spread the vegetables in a single layer on a baking sheet. Roast for 25-30 minutes, or until tender and slightly caramelized, flipping halfway through.
Remove from oven and garnish with fresh parsley. Serve immediately.
1 red onion
Notes
For a spicier kick, add a pinch of red pepper flakes.