In a large bowl, combine eggs, ¾ of the chives, and avocado. Stir gently.
In a separate small bowl, combine the mayonnaise and lemon juice. Season with salt and pepper.
Carefully stir the mayonnaise and lemon juice through the avocado mix. Season again.
Place 2 lettuce leaves on top of each slice of bread
Spoon 2 heaped tablespoons on each slice. Top with remaining chives
Season again, if desired
Serving Size 2