In a skillet, heat olive oil over medium heat. Add diced chicken, garlic powder, onion powder, salt, and black pepper. Cook until chicken is browned and cooked through, about 7-10 minutes.

Remove from heat and let it cool slightly.

Preheat the oven to 375°F (190°C).

Lightly brush wonton wrappers with olive oil and press them into the cups of a muffin tin to form taco shapes.

Bake in the preheated oven for 8-10 minutes or until golden brown and crispy.

Once the wonton shells are baked, fill each shell with the cooked chicken, shredded lettuce, diced tomatoes, shredded cheese, and green onions.

Drizzle with sweet and sour sauce before serving.