A quick and easy meal, perfect for a healthy lunch.
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1/ In a bowl, whisk together the sake, sesame oil, and soy sauce. Add the cucumbers and toss to coat. Let stand for at least 15 minutes.
2/ Heat a grill pan over medium-high heat and brush with canola oil. Working in batches, grill the pineapple and zucchini until tender-crisp and charred, about 3 minutes per side. Transfer to a cutting board and let cool slightly. Cut the pineapple into 1-inch cubes and the zucchini into 1⁄2-inch half-moons. Keep warm.
3/ To make the teriyaki sauce, in a small saucepan over high heat, combine the soy sauce, mirin, sake, and brown sugar, and bring to a boil. Reduce the heat to medium and simmer until thickened, about 3 minutes.
4/ Brush half of the teriyaki sauce over the salmon. In a large saute pan over medium-high heat, warm the canola oil. Add the salmon and sear until cooked through, about 4 minutes per side. Remove from the heat and brush with the remaining teriyaki sauce.
5/ Divide the rice among 4 bowls. Drain the cucumbers and distribute them evenly among the bowls. Top with the pineapple, zucchini, salmon, and avocado. Garnish with sesame seeds. Drizzle with soy sauce and serve.