Instructions
Roast the Veggies: Preheat oven to 400°F. Toss sweet potato, broccoli, cauliflower, and red onion with olive oil, salt, and pepper. Arrange in a single layer on a baking sheet. Roast for 30–35 minutes, tossing halfway through, until tender and slightly charred.
Cook the Quinoa: While veggies roast, bring quinoa, water (or broth), and salt to a boil in a saucepan.
Reduce heat and simmer, covered, for 15 minutes. Remove from heat and let stand, covered, for 5 minutes; then fluff with a fork.
Make the Dressing (optional): Whisk together tahini, garlic, lemon juice, and warm water until smooth; season with salt and pepper to taste.
Assemble the Bowls:Divide quinoa among four bowls. Top with roasted vegetables and drizzle with dressing if using. Mix and enjoy immediately!