The mushroom papperdelle with broad beans and cream sauce sounds good. I'm a vegetarian who, given a choice, would prefer to eat vegan. So if I were one of your guests, I'd prefer that you use coconut cream, which tastes pretty much the same as dairy cream. However, I'd eat the dairy cream if that's what was served. (Others, though, are different. Some wouldn't care about the dairy cream at all, and some, who are strict vegans, would refuse it.)
Also, you might want to add a nice vegetarian high protein dish. Either veggie burgers or some other faux meat, or marinated tempeh. Tempeh, by the way, is a fermented soybean cake and is widely available in stores these days. Just cut it into thin slices, spread a bit of mustard on top, then marinate for six hours in equal parts soy sauce, lemon juice, and olive oil. Bake at 400 degrees until it's 160 degrees (about 15 minutes).
Last edited by Dilettante; 11-07-2016 at 08:44 AM.