Preheat the oven to 425°F (220°C). Toss the diced sweet potatoes with olive oil, salt, and pepper, then spread them out on a baking sheet.
Roast for about 20-25 minutes until they are tender.
Cooking
In a skillet, heat a little olive oil over medium heat. Add the ground meat and cook until it is browned, breaking it up with a spatula.
Stir in the chili powder, cumin, garlic powder, salt, and pepper. Cook for another 3-4 minutes until fragrant.
Assembly
In serving bowls, layer the roasted sweet potatoes, seasoned meat, and black beans.
Top with your favorite fresh toppings and serve with lime wedges for a zesty finish.
Notes
For optimal flavor, consider serving with a refreshing side salad or tortilla chips. Leftovers can be stored in an airtight container in the fridge for three days.