Preheat The Oven Broiler. Lay The Toasted Bread Out On A Baking Sheet. Top Each Slice Of Bread With 1/4 Of The Avocado, Mushrooms, Almonds, And Tomato Slices. Top Each With A Slice Of Swiss Cheese. Broil The Open-Face Sandwiches Until The Cheese Melts And Begins To Bubble, About 2 Minutes. Serve The Sandwiches Warm.