According to Google, there are a number of diners and cafés in the area that are breakfast/lunch places. There's a good chance one of them will have good pie. It's funny how you can find things in unlikely places. Up on Route 30 in Shabbona is Screamers Ice Cream. They bake their own bread for their sandwiches. Decent soft-serve, but great bread.
Good luck on your quest!
Screamers
408 E Comanche Ave
Shabbona, IL 60550
(815) 824-8181
-Mary