Grownup dinner out in Princeton
Some Suggestions in and around Princeton NJ
Fine Dining Elements Princeton NJ
Mediterra Princeton NJ
Teresa Cafe Princeton NJ
Ruth Chris Steak House Princeton NJ
About 15 Minutes Outside of Princeton
Blue Bottle Cafe Hopewell NJ
Hope this helps.
I have to second Blue Bottle Cafe. It is excellent, and probably quite nice to dine at in the spring, even if they don't have outdoor dining. Brothers Moon, also in Hopewell, is another wonderful option, though I believe it comes in second to Blue Bottle. If you want actually IN Princeton, I don't have any recs because I tend to avoid eating in at the more upscale restaurants. I know that if you like seafood, my mother would second the Blue Point Grille enthusiastically.