Preparation:
Preheat grill. Combine oil, salt and 1/2 teaspoon hot sauce in a medium bowl. Add chicken cutlets and toss until all are coated with the mixture. Grill until chicken has cooked through, 8 to 10 minutes, turning once. Brush tops of cutlets with remaining hot sauce to taste. Split rolls crosswise almost in half and spread the bottoms with 1 tablespoon blue-cheese dressing each. Divide lettuce, tomatoes, chicken, and avocado slices among rolls; top with remaining blue-cheese dressing and close rolls.