Shredded-Greens and Citrus Salad

Preheat oven to 350°F. Spread walnuts on a rimmed baking sheet in a single layer. Toast until slightly darkened and fragrant, 12 to 14 minutes. Let cool completely.

In a large bowl, toss Brussels sprouts and radicchio with 1 teaspoon salt. Rub mixture between your palms until greens soften slightly and turn shiny. Toss in endives. In a small bowl, whisk together vinegar, lemon juice, and oil; season generously with salt and pepper. Pour dressing over greens, tossing to evenly coat. Top with walnuts and orange supremes; serve.