This was our lunch yesterday. So good, quick, healthy and easy. I just used one can of salmon and mashed in an avocado, 2 tsp. of dill mustard, 2 crushed garlic cloves, dill and pepper. No mayo required. Toast the bread, spread on some mustard if you want, add a leaf of lettuce, top it with the salmon mixture and then cheese. Broil for a few minutes. Yummy! Of course, you can use any flavorings you prefer. Here's a pic of the ones I made.