Cook the Quinoa: Rinse the quinoa in a fine-mesh sieve. In a saucepan, combine quinoa, water, and salt. Bring to a boil, then reduce heat to low, cover, and simmer for 15-20 minutes, or until all the liquid is absorbed. Fluff with a fork and set aside.
Grill the Chicken: Preheat grill to medium-high heat. Season the chicken with garlic powder, onion powder, salt, and pepper. Grill the chicken for 5-7 minutes per side, or until cooked through. Let the chicken rest for 5 minutes before slicing.
Roast the Vegetables: Preheat oven to 400°F (200°C). Toss the broccoli and bell peppers with olive oil, salt, and pepper. Spread the vegetables in a single layer on a baking sheet. Roast for 20-25 minutes, or until1 tender-crisp.
Make the Ginger-Soy Vinaigrette: In a small bowl, whisk together soy sauce, rice vinegar, ginger, honey, garlic, sesame oil, and red pepper flakes (if using).
Assemble the Bowls: Divide the cooked quinoa among bowls. Top with grilled chicken, roasted vegetables, and red onion. Drizzle generously with the Ginger-Soy Vinaigrette.
Tips:
You can use any type of protein you like for this recipe, such as grilled fish, tofu, or chickpeas.
For a spicier dressing, add more red pepper flakes.
Serve the bowls with your favorite side dishes, such as a green salad or a side of bread.