To prepare Seasoned Tempeh:
Combine liquid aminos, onion, garlic, bay leaf, and 2 cups water in saucepan over medium heat. Add tempeh slices, and bring to a simmer. Reduce heat to medium-low, and simmer 20 minutes. Cover, and let tempeh cool in broth.
To make Thousand Island Dressing:
Stir together mayonnaise, relish, and ketchup in small bowl.
To make Sandwiches:
Toast 8 slices bread. Set aside. Drain tempeh, and discard liquid, onion, garlic, and bay leaf. Place 3 slices tempeh on each slice of remaining bread. Top with cheese slices. Toast or broil 3 to 5 minutes, or until cheese has melted.
Top each sandwich with 1/4 cup sauerkraut. Spread toasted bread slices with Thousand Island Dressing. Place tops on sandwiches, and slice in half.