If your cast iron skillet hasn't met a shishito pepper yet, it's time to make an introduction. The small, mild Japanese peppers make the ultimate hands-on snack. Shishito peppers have been trendy long enough to earn mainstay, summer-staple status. (I think they are just as worthy of our affection as tomatoes and zucchini.) They come to us completely ready to cook — absolutely no prep required. Every so often you will come across a spicy one, which makes them all the more fun to eat.
The best way to prepare shishitos isn't fancy, just simple and delicious.