In a mixing bowl combine olive oil, balsamic vinegar, garlic, oregano, rosemary, thyme, basil, salt, and pepper; whisk until incorporated and set aside.
Prepare the veggies and spread them out on a large, 11x17 baking sheet in one single layer. Or use 2 smaller baking sheets.
Pour the prepared dressing over the vegetables and toss until thoroughly combined and evenly coated. Add more oil if needed.
Place on middle rack in the oven and bake for 35 to 40 minutes, stirring the vegetables halfway through cooking.
Remove from oven and taste for salt and pepper; adjust accordingly.