Trim the edges of the bread (if desired); spread with butter or margarine.
Peel avocado and cut into thin slices; arrange on the slices of bread and sprinkle with salt and black pepper.
Cut the bacon into thin strips and spread over the avocado slices. Spread tomato slices over the bacon and grate on the cheddar cheese.
Place in a preheated oven, 350◦F/180◦C just until the cheese melts.
To Serve: Serve as a snack or lunch with Grace Tropical Rhythms.