Begin by roasting your veggies. Heat your oven to 400°F and coat two baking sheets with cooking spray. In a large bowl, toss the carrots, onions, and garlic with olive oil, 1 tsp. salt, cumin, and pepper until evenly coated. Then spread the veggies in an even layer on the baking sheets and roast for 25-30 minutes, turning the veggies twice and rotating pans once, until the veggies are browned. Allow them to cool for 10 minutes.