Avocado Sweet Potato Tacos

Name: Avocado Sweet Potato Tacos
Prep time: 10 min
Cook time: 20 min
Total time: 30 min
Cuisine: American, Mexican, Latin American
Ingredients: 1 medium sweet potato, cubed; Extra-virgin olive oil, for drizzling; ½ teaspoon chili powder; 4 to 6 tortillas (I like these white corn & wheat tortillas, or homemade tortillas); 1 cup black beans, cooked, drained, and rinsed; Lime slices, for serving; Sea salt and freshly ground black pepper; ½ cup whole milk Greek yogurt; 1 small avocado; ½ garlic clove; Juice of 1 lime; Sea salt & fresh black pepper; 1 small avocado, diced; 2 scallions, diced; Crumbled feta or Cotija cheese; Pickled onions; Microgreens or fresh cilantro