Toast 3 slices of bread. In a skillet, heat a little beef or veg. broth (about quarter cup) & cook sliced mushrooms & onions on high heat til done. Let them drain on a paper towel. Coat each slice of bread with fat free mayo or salad dressing (or Kraft Ranch Free if you like) & spicey mustard (green chili & garlic dijoin if your in Austin--Central Market). Layer thinly sliced tomatoes cucumbers, low fat cheese, sprouts & yer mushrooms & onions. If lettuce ever gets back down into the price range of we lumpin' proletariats, add some of that. Cut into quarters & eat it slowly with great relish in front of some skinny hamburger & fries eater. It's better that way.