Good Eats In Princeton Area? (Within 30 Miles)
You could also stop by the Nassau Seafood shop, right next to their restaurant (Blue Point Grill). Head to the back of the fish store and there is a counter where you can order fish sandwiches, po' boys, salads, and soup. The food is very good and the prices are fair. Then you can sit outside Blue Point Grill and eat or, if the weather is no good, you can go inside and sit at the restaurnat's tables.
Blue Point Grill
258 Nassau St, Princeton, NJ 08542
Hoagie Haven is good, but no seating availble. I've heard that Georges' Roasters & Ribs (two doors down the street from HH) is better.
If you're willing to go with a burger instead of a hoagie, the Rocky Hill Inn isn't too far and recently came in fourth in a "top 10 NJ burger" contest.
Hoagie Haven, 242 Nassau Street, Princeton, NJ 08542 - PHONE: (609) 921-7723
Of course, you will need dessert afterwards so my personal favorite establishment for ice cream is Halo Pub at 9 Hulfish St in Princeton: (609) 921-1710 (I know you only asked about hoagies but couldn't resist & it's not far away)
IMHO both first-rate and good values too ! Have a safe trip.
9 Hulfish St, Princeton, NJ 08542