Wash and prepare all the vegetables as indicated in the ingredients list. Chop them into roughly equal-sized pieces for even roasting.
In a large bowl, toss the prepared vegetables with olive oil, salt, and black pepper until they are evenly coated.
Spread the seasoned vegetables in a single layer on a large baking sheet. Avoid overcrowding the pan, as this will steam the vegetables instead of roasting them. You may need to use two baking sheets.
Roast in the preheated oven for 25-30 minutes, or until the vegetables are tender and slightly caramelized. Flip or stir the vegetables halfway through the cooking time for even browning.
Remove from the oven and serve hot as a side dish.
Notes
Feel free to customize with your favorite vegetables like zucchini, bell peppers, potatoes, or sweet potatoes. Adjust roasting time based on the vegetables used.