Serve a slice of summer with a tomato and cucumber salad. The vinaigrette is made with salty soy sauce, but berfore serving, sprinkle a pinch of flaky sea salt to add texture to the fresh tomatoes.
Arrange tomato and cucumber slices on a platter. Whisk together soy sauce, vinegar, olive oil, and sugar in a small bowl until sugar dissolves. Drizzle 2 tablespoons of dressing over tomatoes and cucumbers, and top with scallions, chile, and sesame seeds. Sprinkle with salt and pepper. Serve immediately with remaining dressing.