Set a large pot over medium high heat with the butter and oil, once hot, add in the sausage and cook stirring often, until browned, about 3 minutes. Using a slotted spoon, transfer the sausage onto a plate and set aside. Add the onion, garlic, celery, and bell peppers and cook until softened, about 5 minutes. Stir in the bay leaves, thyme, salt, pepper, Cajun seasoning, Worcestershire sauce and hot sauce and cook for another 2 minutes to develop the flavor of the seasonings.