Though you can serve it immediately, this salad is best if it stands an hour before being served. To get the thinnest slices from your fennel bulb, quarter it before slicing to create more manageable sections that lie flat on the cutting board.
Combine first 7 ingredients in a large bowl; toss well to combine. Let stand at room temperature 1 hour. Sprinkle with nuts.
Find recipes with ingredients that you have on hand.