1. Heat grill on medium. In a large baking dish, combine oil, garlic, chipotle, and salt. Add asparagus, shiitakes, and green onions; toss to coat. Grill asparagus until tender and lightly charred, turning occasionally; 5 to 6 minutes. Grill shiitakes and green onions until lightly charred, turning occasionally; 4 to 5 minutes. Transfer vegetables to cutting board.
2. Cut asparagus and green onions into 2" lengths and slice shiitakes. Serve with corn tortillas, guacamole, lime wedges, cilantro, and hot sauce.
Nutritional Information (per serving): Calories about 350; Protein 7g; Carbohydrate 36g; Total Fat 21g; Saturated Fat 2g; Dietary Fiber 11g; Sodium 445mghttp://www.goodhousekeeping.com/food-recipes/a38332/grilled-asparagus-and-shiitake-tacos-recipe/