Update your lunch routine with this new spin on the classic BLT. Mr. Stripey tomatoes are a variety of heirlooms with pale, yellow skins with a pinkish-orange blush, occasionally with green stripes. Substitute a beefsteak or other large, firm tomato. Pancetta is Italian cured bacon that gets cooked in the oven (no splattering on the cook-top). Substitute regular cured bacon, if desired. Prepare the mayonnaise mixture and cook the pancetta up to one day ahead.
Smart Packing Tip: To prevent soggy sandwiches, pack separate zip-top bags of tomato slices, arugula, and bread, and then assemble the sandwiches just before eating. Toasting the bread before packing also helps keep everything crisp.