01 - Preheat the oven to 425°F and line a baking tray with parchment paper.
02 - In a large mixing bowl, toss diced sweet potatoes and red onion with olive oil, ground cumin, smoked paprika, chili powder, salt, and black pepper until evenly coated.
03 - Spread the seasoned vegetables on the prepared baking tray and roast for 25 to 30 minutes, stirring halfway through, until tender and golden.
04 - Sauté the minced garlic in a skillet over medium heat for 1 minute; add the black beans and roasted vegetables, cooking for an additional 2 to 3 minutes while stirring gently.
05 - Warm the flour tortillas in a dry skillet or microwave until pliable.
06 - Divide the sweet potato and black bean mixture evenly among the tortillas, then top with grated cheddar cheese, chopped cilantro, and a squeeze of lime juice.
07 - Add optional toppings as desired, fold the sides of each tortilla, and roll tightly into burritos.
08 - For a crispy finish, toast burritos seam-side down in a skillet for 2 to 3 minutes.
09 - Serve immediately with additional salsa, sour cream, and lime wedges.