I have a recipe for a pancetta and onion quiche that I thought I would make for brunch tomorrow. Unfortunately, my regular grocery store does not carry pancetta. I've never had it before, so not sure how different it is from bacon? I don't want to make another trip out to another grocery store to try to find out, so can I do a direct substitution of bacon? (I would assume that would be closer than ham, as I have ham also...) If I substitute bacon, should I make any other adjustments in the recipe?