Former vegetarian favorite: sauteed mushrooms and onions with melted gouda cheese and mayonnaise.
New vegan favorite: vegan Boca burger with sauteed mushrooms and onions, sliced avocado, and vegan mayo. Very messy, but good! (Keep a fork handy for everything that falls off.)
Oh, and I love cucumber sandwiches, just sliced cukes, margerine and salt.