Dave's Mexican Veggie Tacos

Ingredients

• 1 tablespoon oil, or as needed
• 4 carrots, chopped
• 1 potato, chopped
• 2 leeks, chopped (Optional)
• 1 onion, chopped
• 1 sweet potato, shredded
• 1 (15 ounce) can black beans, rinsed and drained
• 2 tablespoons ground cumin
• 1 teaspoon dried oregano
• 1 teaspoon chili powder
• 1 pinch cayenne pepper
• salt and ground black pepper to taste

Instructions

1. Make filling: Heat oil in a large skillet over medium heat; cook and stir carrots in hot oil until lightly browned, about 5 minutes. Add potato; cook and stir until lightly browned and mostly tender, 5 to 10 minutes. Add leeks and onion; cook and stir until onion is lightly browned, 5 to 10 minutes.
2. Mix in sweet potato, beans, cumin, oregano, chili powder, cayenne pepper, salt, and pepper; cook and stir until sweet potato is tender, about 10 minutes. Remove from heat and transfer sweet potato mixture to a bowl, scraping the skillet clean with a rubber spatula.
3. Assemble tacos: Heat each tortilla in the same skillet over medium heat until warmed, about 30 seconds per side. Spread mashed avocado onto each warmed tortilla; top with sweet potato mixture, queso fresco, salsa, cilantro, and lime juice.