Raw Kale Salad with Gouda, Pear, and Walnuts

Preheat oven to 350 degrees. Place walnuts on a rimmed baking sheet and bake until golden brown, tossing once during baking, 8 to 10 minutes.

In a medium bowl, whisk together vinegar and oil; season with salt and pepper. Add in kale, cheese, chives, walnuts, and pear. Toss to combine.