Preheat grill to medium-high heat.

Rinse chicken and pat dry with a paper towel. Season both sides of chicken breasts with taco seasoning.

Grill over medium-high heat for 5-7 minutes per side, or until fully cooked. Transfer chicken to a cutting board and let cool slightly.

Once cool, slice diagonally into ¾” strips.

Using a small bowl, whisk together sour cream and taco seasoning. Spread 2 Tbsp of this mixture on each of the 4 Flatout flatbreads.

Spread 2 Tbsp of salsa onto each flatbread, and then top each with grilled chicken strips, shredded lettuce, diced tomatoes, sliced green and red onions, sliced bell pepper and shredded cheese.

Roll each flatbread up tightly.