01 - Preheat the oven to 400°F. Line a baking sheet with parchment paper.
02 - Toss the cubed sweet potato, broccoli florets, and cauliflower florets with olive oil, smoked paprika, salt, and pepper. Spread evenly on the prepared baking sheet and roast for 20 to 25 minutes, stirring halfway through, until the vegetables are tender with lightly crisped edges.
03 - While the vegetables roast, combine the rinsed quinoa, water, and a pinch of salt in a medium saucepan. Bring to a boil over medium-high heat, then reduce to a simmer, cover, and cook for 15 minutes until all liquid is absorbed. Remove from heat and let rest, covered, for 5 minutes. Fluff gently with a fork before serving.
04 - In a small bowl, whisk together the tahini, lemon juice, maple syrup, minced garlic, and water until completely smooth. Add additional water, one teaspoon at a time, until the dressing reaches a pourable consistency. Season with salt and pepper to taste.
05 - Divide the fluffed quinoa among four bowls. Arrange the roasted vegetables, halved cherry tomatoes, sliced red cabbage, baby spinach, and sliced avocado over each portion. Drizzle generously with the tahini dressing and sprinkle with pumpkin seeds.
06 - Serve immediately while the roasted vegetables are still warm. Enjoy.