My daughter is performing her graduation recital (bachelor of music, piano) and we are hosting an open house after. She is at school six hours away from home. The guests will be her friend primarily and some older relatives. Her recital is a 4:30 pm. on a Sunday with the open house to follow. For food I was thinking of soup, a green salad, ambrosia fruit salad and a sandwich bar where you could make your own sandwich (cold meat, cheese, pickles, a couple of prepared fillings, etc) plus squares and cookies. Would this be too casual, should I plan something else? I just need some input please.