In a small bowl, whisk together the coconut aminos, rice vinegar, grated fresh ginger, and minced garlic to create the teriyaki glaze.
Pat the salmon fillet dry with a paper towel and season both sides with sea salt and black pepper.
Heat the avocado oil in a medium skillet over medium-high heat until shimmering.
Place the salmon in the skillet skin-side up and sear for 4 to 5 minutes until a golden crust forms, then flip.
Pour the teriyaki glaze into the skillet during the last 2 minutes of cooking, spooning the sauce over the fish as it thickens.
Steam the shelled edamame until tender and warm the pre-cooked brown rice.
Assemble the bowl by placing the brown rice at the base, followed by the edamame and sliced cucumbers.
Top with the glazed salmon fillet and any remaining sauce from the pan.
Garnish with toasted sesame seeds and thinly sliced green onions before serving.