For a crunchier texture, toast the almonds in a dry skillet over medium heat for 2-3 minutes before chopping and adding to the mixture.
If you cannot find lovage, fresh celery leaves or a pinch of dried thyme can serve as a suitable substitute.
This filling can be prepared up to 24 hours in advance. Store it covered in the refrigerator and spread onto the bread just before serving to prevent sogginess.
These sandwiches pair beautifully with a light green salad or a glass of white wine.