In a small bowl, stir together olive oil, garlic, curry powder, salt, and pepper.
In a large bowl, combine cauliflower, red bell pepper, yellow bell pepper, onion, and frozen peas. Pour oil mixture over vegetables and toss until evenly coated.
Spread vegetables in a single layer onto a baking sheet.
Bake in preheated oven for 15 minutes. Stir vegetables and bake until tender, about 5 minutes more.
Interesting Facts
Curry powder is a blend of spices that is commonly used in Indian and South Asian cuisine.
Cauliflower is a member of the cruciferous family of vegetables and is a good source of fiber and vitamins.
Roasting vegetables is a great way to bring out their natural sweetness and intensify their flavors.