Start by preheating your oven to 400°F (200°C). Toss the diced sweet potatoes with olive oil, smoked paprika, garlic powder, onion powder, salt, and pepper. Spread them evenly on a baking sheet to ensure they roast properly.
Place the sweet potatoes in the oven and roast for about 25–30 minutes. Stir halfway through so they cook evenly and develop a slightly crispy texture. They should be fork-tender and lightly caramelized.
While the potatoes are roasting, mix chopped chipotle peppers with adobo sauce in a bowl. Add the cooked quinoa and stir until everything is well combined. This creates a smoky and flavorful base.
Once the sweet potatoes are ready, add them to the quinoa mixture. Gently toss everything so the flavors blend well without mashing the potatoes. Taste and adjust seasoning if needed.
Heat your tortillas in a dry skillet or directly over a flame for a few seconds. This makes them soft, flexible, and slightly charred, which enhances the flavor.
Fill each tortilla with the sweet potato quinoa mixture. Top with avocado slices, shredded cabbage, and fresh cilantro. Finish with a squeeze of lime for a fresh, tangy touch.