Step 1

Set oven rack to middle position and preheat oven to 350 degrees. Place walnuts on baking sheet and bake until toasted and fragrant, 7-10 minutes. Set aside to cool.

Step 2

Combine all remaining ingredients in a large bowl and toss well. Cover and refrigerate for at least 15 minutes to allow the flavors to blend. Season to taste with salt, pepper, honey or more citrus. Toss in walnuts and serve.