Christo's has been one of my favorites for many years - my dad used to take me there when I'd go to the office with him as a little kid (I think they still have some of the same waiters as back then!). It's not the finest Italian food in the city, but it's consistently very good. I always get the same thing - halibut in a lemon, butter, garlic sauce with a side order of fettuccini alfredo. Halibut is not on the menu, but they always have it as a special (with different sauces) and they'll make it however you like it. Their entrees are very reasonably priced, and come with a salad with a great mustard dressing...however, they tend to have a heavy hand with the dressing, so you might want to ask for it on the side, or ask for light dressing. The service is friendly and the atmosphere at lunch is "business casual"...while it's a white tablecloth kind of place, you'll find people dressed in everything from jeans to suits. And it's not unusual to spot a governor or mayor here.