Step 1: Cook the Quinoa : Rinse quinoa under cold water to remove bitterness. In a saucepan, add quinoa and vegetable broth. Bring to a boil, then reduce heat to low, cover, and simmer for 15 minutes or until liquid is absorbed. Fluff with a fork and set aside.
Step 2: Roast the Vegetables : Preheat oven to 400°F (200°C). Line a baking tray with parchment paper. Toss bell peppers, zucchini, eggplant, carrots, onions, and cherry tomatoes with olive oil, garlic powder, paprika, salt, and pepper. Spread in a single layer and roast for 25–30 minutes, stirring halfway through, until tender and lightly caramelized.
Step 3: Prepare the Dressing : In a small bowl, whisk together olive oil, lemon juice, Dijon mustard, minced garlic, and honey. Season with salt and pepper to taste.
Step 4: Assemble the Salad : In a large mixing bowl, combine the cooked quinoa and roasted vegetables. Pour the dressing over and toss gently to coat. Add feta, herbs, or nuts if desired.
Step 5: Warm and Serve : Serve immediately while warm or let it cool slightly for a room-temperature salad.