Prepare the persimmons: Ensure your Fuyu persimmons are ripe but still firm. Peel them using a sharp knife or vegetable peeler. Dice the persimmons into bite-sized pieces.
Assemble the salad: In a medium bowl, gently toss the diced persimmons with the chopped walnuts and crumbled goat cheese.
Dress the salad: In a small bowl, whisk together the olive oil, balsamic glaze, salt, and pepper.
Combine and serve: Arrange a bed of mixed greens on a serving plate. Top with the persimmon, walnut, and goat cheese mixture. Drizzle with the dressing just before serving.