Made with fresh whole milk mozzarella, homemade herb mayonnaise, creamy avocado, and spicy red onion, this Tomato Mozzarella Sandwich with Herb Mayo is a fast and fresh alternative to an otherwise boring sandwich. Prepare the mayo ahead of time and keep it in the refrigerator up to a week!
In the bowl of a small food processor, add all ingredients for the herb mayonnaise. Blend until smooth. Set aside in the refrigerator until ready to serve.
FOR THE SANDWICH
Lightly toast the bread and spread each slice with one tablespoon of mayonnaise. Top one slice of bread with the avocado, sliced mozzarella, sliced red onion, alfalfa, and butter lettuce. Place the other slice of toasted bread on top. Wrap the sandwich in a piece of parchment paper and slice in half with a sharp knife.