I haven’t tried potatoes cut into fries yet. I believe you need to soak in water first.
I have done frozen fries, tots, onion rings, pizza logs, mozzarella sticks, loaded potato bites, crunch rolls, breaded mushrooms, chicken wings.
non frozen: cubed sweet tates, cubed white potatoes, white potato wedges, breaded zucchini, breaded chicken nuggets or breaded tenders and lastly the eggplant bacon.
Aside from the chicken and zucchini nothing not already frozen wasn’t super crispy. But it keeps me from turning on the oven on hot days.