Well, the only two places I encounter mushrooms is pizza and my marriage. My ex-wife used to love fresh mushrooms with her salad, and I too did not mind a fresh mushroom with my salad. Unfortunately, after the divorce I don't see many salads, as pizza is a more likely meal candidate. As far as I know, most pizza shops used canned mushrooms unless you are eating some type of gourmet pizza (ya know with nice fresh veggies and weird meats), you are going to get canned mushrooms.