I have noticed that at an Israeli wedding, some people don’t eat the roll - maybe thinking that they then won’t have to say birchas hamazon! They prefer to say a berachah over each of the foods. They begin by eating the numerous salads, then the fish, then the main course of rice, potatoes and some form of meat. By that time they are almost sovea and they just have room to eat the dessert which consists of ice cream – and a piece of cake. According to the Ashkenazi practice, this piece of cake could mean that they would have to say birchas hamazon in the same way as if they had eaten the roll at the beginning of the meal!  (for discussion of this subject see: Vezos Haberachah by Rav Alexander Mandelbaum, pages 31-33)

In a publicised ruling made by six leading Poskim in the United States regarding rolls made with fruit juice, they write that the custom to put out such rolls which are marked “borei minei mezonos” at meals such as at weddings and on airplanes, where obviously people “kovea seudah” on them, results in a “stumbling block” for a large number of people. (ruling reproduced (but without a date) in “Luach Berachos” by Rav Alexander Mandelbaum, page 50)