01 - Toast the bread slices in a toaster until golden and crisp.
02 - In a small bowl, mash the avocado with lemon juice, salt, and freshly ground black pepper using a fork until mostly smooth with some remaining texture.
03 - Spread the mashed avocado evenly onto each toasted bread slice.
04 - Arrange thinly sliced smoked salmon over the avocado layer.
05 - Sprinkle with chopped dill or chives, and add red pepper flakes and capers if desired.
06 - Serve immediately, garnished with lemon wedges.