Oregon-grown wasabi is a versatile and spicy option for your cooking written by Sophia McDonald Sushi aficionados, take note: That spicy, lime green paste next to your dragon roll may be called wasabi, but chances are it isn’t the real thing. Most of the time, it’s a combination of horseradish, powdered mustard and green food coloring.  Wasabi is native to Japan, but you can buy it closer to home than you might think. Oregon Coast Wasabi in Tillamook County is one of only three commercial growers in the United States. Co-founder and CEO Jennifer Bloeser quite by accident stumbled onto the relative of the horseradish plant at an equestrian event. A fellow participant had brought some plants to the gathering and was giving them away. Bloeser’s neighbors in Southeast Portland were always sharing the bounty from their gardens with her, and she was looking for something to give back. Wasabi,…