Preheat your oven to 375 F.
In a bowl, whisk together the olive oil, maple syrup (if using), and curry powder.
1 tbsp. maple syrup, 2 tbsp. olive oil, 2 tsp. curry powder
Spread all the vegetables on a baking sheet.
1 eggplant, 2 bell peppers, 1 large zucchini, 1 onion
Drizzle the curry oil over the vegetables, season to taste, and toss until everything is well coated.
Sea salt and freshly ground black pepper
Bake for 15 to 20 minutes.