Not me on the creamed shishitos.
Just did shisitos by themselves in the air fryer and 5-6 minutes is about right. The charring is light in color and more even than pan charring. I can see where a grill would be best for the charred aspect as far as aesthetics goes.
Leftover meatloaf is the rest of my lunch and I bet some chopped up shishitos would be good in meatloaf.
They are good with anything. If I want grill charred (charcoal) I have a grill wok, I slice the peppers lengthwise, clean out thoroughly, toss with a very light amount of olive oil. Only takes 30 seconds or so on a hot grill.