Heat olive oil in a skillet over medium heat. Add onion and garlic, sauté until fragrant.

Add ground turkey and cook until browned. Stir in black beans, corn, bell pepper, and taco seasoning. Cook for an additional 5 minutes.

Warm the corn tortillas in a dry skillet or microwave.

Fill each tortilla with the turkey mixture, then top with lettuce, tomato, avocado, Greek yogurt, and cilantro.

Serve with lime wedges on the side.