I don't know of any apple pie recipes where you don't core or peel the apples. Only thing I can think of is to core an apple, and fill the middle with brown sugar and butter and bake at 350 until soft about 25 minutes. You can top this with whipped cream as a treat. It's very informal, but doesn't need a crust and you don't have to slice it...just core it.
Otherwise, check out the produce section at the grocery store for pre-cored, peeled, and sliced apples in a snack pack...you know for lunch boxes and such. Grab a pack of pillsbury pie dough or a pet ritz brand frozen pie shell from the dairy or frozen pie section of the store, add apples to the shell and apple slices, flour and apple pie spice (sold as such in the spice section) and bake for half an hour.
One other option use precut and sliced apples and make an apple crisp. Just spread apples mixed with brown sugar and cinnamon in a pan and top with uncooked oat meal and pats of butter and bake until crisp.
Here are two recipes:
http://www.cooks.com/rec/view/0,1941,152169-241205,00.html
http://www.cooks.com/rec/view/0,2213,156176-238200,00.html