This is so good! And very adaptable to your own tastes or to what you have available in your kitchen (the best part is the taste of crab & avocado together!). I first tried it at a restaurant 20+ years ago and have been making it at home ever since. I like it just the way I've posted but you can sub any type of bread, any type of crab, use avocado dip instead of fresh slices, and your choice of condiments. You can also melt the cheese for a couple of minutes under the broiler for a hot sandwich. Have fun!