Preheat oven to 400°F.
Peel (if desired) and cube the sweet potato. Toss with a little olive oil, salt, and pepper, and spread on a baking sheet.
Drain, rinse, and pat dry the chickpeas. Season with spices of choice (paprika, cumin, garlic powder) and a drizzle of olive oil, then spread on another baking sheet.
Roast the sweet potato cubes for about 25-30 minutes and the chickpeas for about 20-25 minutes until crispy, stirring halfway through.
While roasting, cook quinoa according to package instructions if not already prepared.
Slice the tempeh into thin strips or cubes and lightly pan-sear in a non-stick pan until golden brown on all sides.
In a small bowl, whisk together tahini, lemon juice, minced garlic, and water until smooth to create a creamy dressing.
Assemble the bowl by layering spinach, quinoa, roasted sweet potato, crispy chickpeas, and tempeh.
Drizzle the lemon-tahini dressing over the bowl, toss gently, and serve warm.