I'll bet it could be modified for other fruit - just a bit more work in peeling. It's sort of like a crustless pie so I think would work with any other fruit used in pies.

Because of my boxes each week from a local farm, I've been using many more greens - kale, turnip greens, beet greens, garlic scapes - and root veg like turnips, beets, kohlrabit - than ever before. If anyone has recipes for those (the farmer's wife sent me a great one for beet green gratin), I would love them!