Preheat your oven to 425°F (220°C).
Wash and peel the sweet potatoes, carrots, and beets. Cut them into uniform cubes.
In a large mixing bowl, combine the chopped root vegetables with olive oil, smoked paprika, salt, and pepper.
Spread the vegetables out on a baking sheet in a single layer.
Roast in the preheated oven for 25-30 minutes, stirring halfway through.
While vegetables roast, rinse and cook the quinoa as per package instructions.
Once roasted, let the vegetables cool slightly before combining them with the cooked quinoa.
Serve the grain bowl drizzled with tahini for additional flavor and creaminess, if desired.