Chef Jean Pierre has a very easy to follow tutorial on YouTube! I changed out the cheeses to skew more Italian than his French style and add soy sauce to my olive oil and balsamic marinade.
Thank you! I had neither allium in this version, though I'm sure they'd be welcome additions. I mopped up the leftovers with a crusty piece of sourdough so you're probably right that having the panko topping would be like getting the best of both there.