There are a lot of great food places near Urbana. Here's a quick reference for them:
Landon House Rehearsal Dinners
3401 Urbana Pike
Urbana, MD 21704
301-305-6600
Carriage House Inn
200 S. Seton Avenue
Emmittsburg, MD 21727
301-447-2366
Acacia
129 N. Market St.
Frederick, MD 21701
301-694-3015
Alexander's
3619 Buckeystown Pike
Buckeystown, MD 21717
301-874-1831
Airways Inn
310 Aviation Way
Frederick, MD 21701
301-228-2100