Chicken Fajita Lettuce Wraps

Name: Chicken Fajita Lettuce Wraps
Ingredients: 2 teaspoons chili powder; 1 teaspoons cumin; 1 teaspoon garlic powder; 1 teaspoon onion powder; 1 teaspoon smoked paprika; 1/2 teaspoon salt or to taste; 1/4 teaspoon black pepper or to taste; For the Fajitas:; 3 Tablespoons olive oil; 1/4 cup fresh cilantro leaves chopped plus more for serving; juice from 2 limes divided; 2 medium chicken breasts cut into 1 chunks; 4 medium bell peppers thinly sliced into strips; 1 medium red onion thinly sliced into strips; 1 head butter lettuce leaves washed (green leaf or romaine works too); sliced avocado and lime wedges for serving