Preheat your oven to 400°F (200°C) and line a large baking sheet with parchment paper.
In a large bowl, combine the cauliflower florets and chickpeas, then toss with avocado oil, smoked paprika, garlic powder, sea salt, and black pepper until evenly coated.
Spread the mixture in a single layer on the prepared baking sheet and roast for 20 to 25 minutes, or until the cauliflower is tender and the chickpeas are slightly crispy.
While the vegetables roast, prepare the dressing by whisking together the tahini, lemon juice, and water in a small bowl until smooth and pourable.
Place the baby spinach in a serving bowl and top with the roasted cauliflower and chickpea mixture.
Sprinkle the hemp hearts, nutritional yeast, and pumpkin seeds over the top for a significant protein boost and added crunch.
Drizzle the tahini dressing over the bowl and serve immediately while the roasted vegetables are still warm.