In a large skillet over medium heat, lightly fry the bacon for 6-10 minutes. Place on a paper towel. Mix mayonnaise and green onions. Season with salt and pepper.
Grease each slice of bread on one side with mayonnaise mixture. Place 4 slices of meat on the first slice of bread, then 4 slices of avocado. Then the second slice of bread. Put on it alternately alfalfa, 4 slices of bacon, and 4 slices of cheese. Cover with the remaining slice of bread. Fasten the sandwich with 2 toothpicks and cut it in half. Do the same with the rest of the products.