Cook the brown rice according to package instructions.
Preheat oven to 400°F (200°C). Toss diced sweet potatoes with olive oil, cumin, smoked paprika, salt, and pepper. Spread on a baking sheet and roast for 20-25 minutes, until tender and lightly browned.
While the sweet potatoes roast, heat the black beans in a small saucepan over medium heat until warmed through.
Once everything is ready, assemble the bowls by adding a base of rice, then topping with roasted sweet potatoes, black beans, avocado slices, and chopped cilantro.
Serve with lime wedges and optional toppings as desired.
Notes
Use quinoa instead of rice for a different base.
For extra flavor, add a drizzle of chipotle mayo or hot sauce.
Store leftovers in separate containers for easy meal prep.