Slice the chicken breast thinly.
Lightly warm the tortilla in a pan.
Season the chicken breast with salt and black pepper.
Grill the chicken breast in a pan until cooked through.
Julienne the lettuce, tomato, and bell pepper.
Place the vegetables and grilled chicken breast on the warmed tortilla.
Drizzle with low-fat yogurt sauce.
Roll up the tortilla to complete the wrap.