This recipe is NOT precise...use different types of bacon (peppered, thick cut, brown sugar cured...or even Pancetta, if you like it). Lettuces come in so many textures and colors, pick one you like...or use a variety...like cos, butter lettuce, oak leaf types or crispy romaine. Be creative and don't be afraid to add your own twist. COOKING IS AN ART FORM! Express yourself... and happy cooking!