By January, fresh, local produce is a distant memory in most parts of the country. Even warmer growing regions are not supplying much variety to fill the salad bowl. But that isn’t stopping Corey Shoemaker from creating colorful, healthy tosses of winter greens and other vegetables. As chef at Mii amo Cafe, the spa restaurant at Enchantment Resort in Sedona, Arizona, that focuses on “intelligent cuisine,” he makes the most of whatever is available.