2 cups, 4 handfuls, fresh shiitake mushrooms
1 1/3 to 1 1/2 pounds thin cut chicken breast or chicken tenders
2 tablespoons light colored oil, such as vegetable oil or peanut oil
Coarse salt and coarse black pepper
3 cloves garlic, chopped
1 inch ginger root, finely chopped or grated, optional
1 orange, zested
1/2 red bell pepper, diced small
1 small tin, 6 to 8 ounces, sliced water chestnuts, drained and chopped
3 scallions, chopped
3 tablespoons hoisin, Chinese barbecue sauce, available on Asian foods aisle of market
1/2 large head iceberg lettuce, core removed, head quartered
Wedges of navel orange -- platter garnish