01 - Preheat oven to 425°F. Line a baking sheet with parchment paper.
02 - In a large mixing bowl, toss pumpkin cubes with olive oil, ground cumin, smoked paprika, sea salt, and black pepper. Arrange in a single layer on prepared baking sheet.
03 - Roast pumpkin for 25 to 30 minutes, turning halfway, until caramelized and fork-tender.
04 - Rinse quinoa thoroughly under cold water. In a saucepan, combine rinsed quinoa, water, and salt. Bring to a boil, reduce heat to low, cover, and simmer for 15 minutes. Remove from heat and let rest, covered, for an additional 5 minutes. Fluff grains with a fork.
05 - In a small bowl, whisk together tahini, lemon juice, maple syrup, ground cinnamon, pinch of salt, and 2 to 3 tablespoons water until creamy and pourable.
06 - Divide cooked quinoa among four serving bowls. Top each with roasted pumpkin, baby spinach, shredded red cabbage, cherry tomatoes, avocado slices, pumpkin seeds, and pomegranate seeds if desired.
07 - Drizzle generously with cinnamon tahini dressing. Serve immediately.