Hopewell:
Nomad: One of the best $15 personal pizzas I have had. Rivals any pizza I had in Italy. Bonus for al fresco option. Pricey.
Dai Thai: Good Thai. The wait staff spills stuff on my wife everytime we go here, but we come back because it is good. Bonus for al fresco option. Pricey. MTBNJ relation: one of the waitresses looks like a Thai version of one of the race team.
Lawrenceville:
Fedora Cafe: Killer deserts, killer sunday breakfast, good everything else. Bonus for al fresco option.
Lambertville:
Siam: Good thai. You need a reservation for this place most of the time. Hit up City Market for dessert.
Cafe Galleria: They made waffles and pizza for the 2011 HOH, so you shouldn't need anymore reason than that. Currently in the process of moving into a new place (should be really soon if not already) after getting flooded out last year. Lots of vegetarian options and tofu aphrodite is excellent.