Eating Out Too Much

My teenaged stepdaughter recently decided she is a vegetarian. She emailed me to let me know and to tell me some of the things she eats (so I can have them here for her when she comes this weekend I suppose). She says she likes "a house salad." I'm not a restaurant so I don't know what this is, lol. I thought "house salad" meant whatever a particular restaurant deemed to be their house/specialty/restaurant salad. Am I wrong here? All that tells me is that she eats out obviously too much!