Cut salmon into 1-inch cubes and prepare teriyaki glaze by whisking coconut aminos, vinegar, honey, garlic, ginger, orange juice, and chili flakes.
Halve or quarter Brussels sprouts, toss with 1 teaspoon sesame oil, and spread on a baking sheet. Roast at 400°F (200°C) for 20-25 minutes.
Cook salmon by pan-searing in 1 teaspoon sesame oil for 2-3 minutes per side or broiling with half the glaze for 5-7 minutes. Toss cooked salmon with remaining glaze.
Assemble bowls with rice, salmon, Brussels sprouts, and sliced cucumbers. Drizzle with remaining glaze and sprinkle sesame seeds.
Notes
Feel free to add extra chili flakes for more heat or garnish with green onions.