Preheat BBQ (if using).
Cook bacon and patties on the BBQ or in a cast iron skillet for 3-5 minutes each side, until caramelised. Allow to rest for 5 minutes.
Wrap buns in foil and heat on the BBQ for 5-10 minutes, until warm. Alternatively, heat buns in microwave.
Pile buns and bacon on buns and fill with your choice of fillings.