
1) Preheat oven to 500 degrees F.
2) Break or chop cauliflower into small pieces.
3) Prepare 1 to 2 baking sheets with foil. Place cauliflower on baking sheets so the pieces are not touching. Drizzle with olive oil, white wine vinegar, and agave and toss with pinches of salt and pepper. The amount you use will depend on how much cauliflower you have and if you prefer to cook with more oil or with less.
4) Roast in the oven for 15-20 minutes or until deeply golden and caramelized (not burnt, but just before). Remove from oven. While the cauliflower is somewhat hot, toss with the arugula so the arugula wilts just slightly from the heat. Toss in a bowl with capers, raisins, and tarragon and serve.