Don't be fooled by a clientele that skews toward your parents' parents. This Pearl District eatery rates a good deal for those with all their taste buds. The spinach salad ($7.99) with Nancy's signature celery-seed dressing is a meal in itself. Sandwiches like the BLT classic ($6.79) and albacore tuna ($6.29) are filling, especially if you opt to add a baseball-sized portion of potato salad ($2.29). Steer clear of the watery Hungarian mushroom soup or clam chowder that come with the half-sandwich and cup of soup ($6.99). But do give into your sweet tooth and try Nancy's famously fluffy and plentiful lemon chiffon pie ($3) or thick shakes ($3.99). (HS)