1. Stir together 1/2 cup mayonnaise and 1 Tbsp. chopped fresh basil. Spread 1 Tbsp. mayonnaise mixture on 1 side of each bread slice. Top 4 bread slices, mayonnaise sides up, evenly with meatloaf slices, shredded lettuce, and tomato slices; sprinkle with salt and pepper to taste. Top with remaining bread slices, mayonnaise sides down.
Note: For testing purposes only, we used Sara Lee Honey White Bakery Bread.