The good ol' spaghetti factory's gotta be the safe choice for business lunches; especially when you may not know how many people will show up and whether or not it will fit everyone's dietary preferences.
I'm on my 6 or 7 visits within the last year and a half - service has ALWAYS been courteous and very professional! The folks in the kitchen must have the formulas worked out - entree always arrive a few minutes after salad plate is cleared in military precision - literally. And if you're lucky they have this minty - chocolate ice cream with nuts to give you all the motivation you'd need to head back to the office!