Mix the cream cheese, lemon juice, and dill in a small bowl until smooth.
Lay a sheet of nori shiny side down on a bamboo mat, with the long edge closest to you.
Spread about 2 tablespoons of the cream cheese mixture over the bottom two-thirds of the nori sheet, leaving the top third bare.
Layer 2 to 3 strips of smoked salmon across the bottom third of the cream cheese.
Top the salmon with a few avocado slices and 3 to 4 cucumber matchsticks, keeping the pile no wider than a finger.
Using the mat, roll the nori away from you, pressing firmly and tucking as you go, until you reach the bare top edge. Dab a little water on the edge to seal.
Repeat with the remaining nori sheets and filling.
Sprinkle sesame seeds over each roll and press gently so they stick.
Slice each roll into 6 pieces with a sharp knife, wiping the blade with a damp cloth between cuts.
Serve right away with coconut aminos, wasabi, and pickled ginger on the side.