Preheat the oven to 400°F to 425°F
Wash and dry the vegetables
Cut the vegetables into even-sized pieces
Place the vegetables in a bowl
Add oil, salt, and any desired seasonings
Toss until evenly coated
Spread the vegetables in a single layer on a baking sheet
Avoid overcrowding the pan
Roast for 15 to 40 minutes, depending on the vegetables
Flip or stir halfway through cooking
Check for tenderness with a fork
Remove from the oven when browned and cooked through
Serve immediately