Add the green onion, pepper, ginger, garlic and lime zest to a 12-to-14 cup food processor fitted with the blade attachment. Pulse until the vegetables are finely chopped. Add the salmon, panko, cilantro stems, sweet chili sauce, sesame oil and soy sauce. Pulse to roughly chop the salmon and incorporate into the vegetable mixture. The mixture should be chunky, not a paste. Lightly coat clean hands with nonstick cooking spray and form 6 patties the same shape and size as the buns, about 1/2 cup each.
Heat a large nonstick skillet over medium-high heat. Add the vegetable oil and swirl to cover the pan. Add the patties and cook until the internal temperature is 145 degrees F, about 4 minutes per side.
Assemble the burgers: Lay buns cut side-up on a clean work surface. Spread the mayonnaise evenly inside all of the buns. Place a salmon patty on each of the bottom buns, top with desired amount of pickled vegetables and cilantro leaves. Place bun tops on and serve.
Spicy Quick-Pickled Vegetables:
Yield:About 2 cups
Add the vinegar, 1/2 cup of water, pickling spice and 1/2 teaspoon of salt to a small saucepan. Over medium heat bring the mixture to a simmer, then turn off the heat and add the cucumbers, carrot, shallot and chile. Cool completely. Refrigerator in an airtight container for up to 5 days.