I got fresh horseradish (that hairy root above) in my CSA share this week, and wasn't totally sure what to do with it. I also had the last asparagus of the season. A quick search on epicurious.com brought this recipe for asparagus with horseradish butter. The recipe calls for drained prepared horseradish, but I just substituted my fresh horseradish , peeled and grated with the microplane. Pretty good!
Served if with BBQ chicken thighs (followed this recipe except for the addition of some hot sauce) and Trader Joe's brown rice medley cooked in chicken broth and mixed with steamed kale and some feta cheese.
Perhaps I'll prepare the rest of the horseradish the way Simply Recipes recommends.