Preheat your oven to 425°F (220°C).
In a large bowl, combine the zucchini, bell peppers, red onion, cherry tomatoes, and minced garlic.
Drizzle the olive oil over the vegetables and sprinkle with oregano, thyme, salt, and black pepper. Toss until all the vegetables are evenly coated.
Spread the vegetable mixture in a single layer on a large baking sheet.
Roast in the preheated oven for 25-30 minutes, stirring halfway through, until the vegetables are tender and slightly caramelized.
Remove from the oven and drizzle with balsamic vinegar. Toss gently to combine.
Garnish with fresh parsley before serving.