Preheat air fryer to 360°F. Place sweet potatoes in a large bowl. Drizzle with olive oil and season with salt, pepper and garlic powder. Toss to coat.

Working in batches, arrange sweet potatoes in a single layer in air fryer basket. Cook for15 to 20 minutes, or until golden-brown and crisp. Transfer finished chips to a wire rack.

Line air fryer basket with aluminum foil. Place a layer of chips on foil and cover with 1/2cup cheese. Add 1/2 cup black beans and 1/2 cup corn. Repeat layers with more chips,cheese, black beans and corn, finishing with a top layer of cheese. Cook for 10 minutes at300°F, or until cheese is melted.

Transfer nachos to serving platter and top with salsa, yogurt, avocado, jalapeno and cilantro. Serve with lime wedges