Roasted Cauliflower and Sweet Potatoes

3 medium sweet potatoes
1 medium head of cauliflower
Preheat oven to 450 degrees. On a rimmed baking sheet, toss sweet potato and cauliflower with 1 1/2 tablespoons oil and season with salt and pepper. Roast until cooked through and browned on one side, about 30-45 minutes.