Classic Salmon Burgers

0 Using a sharp knife, slice the skinless, deboned salmon into ½” square pieces. (Carefully cut this, as you want to keep the integrity of the salmon pieces without them becoming mushy. Cutting the salmon down took me about 10 minutes.)
1 Place the salmon into a glass bowl, and add the egg, panko, salt, pepper, soy sauce and lemon zest.
2 Using your hands, toss the salmon until just combined.
3 Separate into four evenly sized patties.
4 Preheat a skillet or grill pan over medium-high heat with a little bit of olive oil.
5 When the pan is hot, place the salmon patties into it, and sear on one side.
6 Once one side is crisp and browned, flip and cook the other side until equally browned.
7 Remove the salmon patties from the heat, and place on the toasted buns.
8 Place avocado slices on top of the burgers and a leaf of butter lettuce beneath them. Serve immediately.