Preheat your oven to 400°F (200°C).

Dice your vegetables into small, uniform pieces.

In a mixing bowl, combine the diced vegetables, olive oil, garlic powder, onion powder, paprika, salt, and pepper. Toss everything together until the vegetables are well-coated.

Pour the vegetable mixture into an oven-safe dish.

Place the dish in the preheated oven and bake for 15 minutes.

If using cheese, sprinkle it on top after the initial baking time.

Return the dish to the oven for an additional 5 minutes, or until the cheese is melted and bubbly.

Remove the dish from the oven and let it cool slightly before serving.