Heat oil in a nonstick skillet coated with cooking spray and cook chicken for 6 minutes; drain. Add hot sauce and bring to a boil. Reduce heat and simmer, uncovered, for 3-5 minutes or until sauce is thickened and chicken is no longer pink in center (cut to test).
Place lettuce on warm tortillas and drizzle dressing on top. Place chicken and sauce over lettuce and top with blue cheese. Roll up and serve.