Heat oil in a saute pan over medium heat.
Add onions, carrots (and celery, if using), and a pinch of salt and pepper.
Cook for 5-6 minutes, or until onions are becoming translucent and vegetables are softening.
Add the ground chicken, and cook until done, breaking up the meat as it cooks.
Stir in the tomato sauce, hot sauce, and Worcestershire, and simmer for several minutes, until heated through.
Spoon onto rolls and top with blue cheese dressing or crumbles for serving.