1) The restaurant has a really bad name like "Pastabilities", "Sir Loin's", or "Best O' Thymes".
2) You can easily get seated for dinner in a really slick modern looking restaurant at 8PM on a Saturday Night (without a reservation).
3) Chicken Quesadillas are featured on the menu (and particularly if it's not a Mexican Restaurant).
4) They have to tell you on the menu that their food is: "delicious", "tasty", or "fresh".
5) It's German or Austrian.:)