2 tablespoons olive oil
4 cups sliced fresh mushrooms (such as cremini, shiitake, porcini or chanterelles, about 8 ounces)
    Salt and freshly ground black pepper, to taste
2 tablespoons unsalted butter
1/2 cup minced shallots
1 cup Israeli couscous
2 cloves Earthbound Farm Organic Garlic (finely minced)
2 cups Parmesan Stock or chicken stock
10 ounces Earthbound Farm Organic Baby Spinach
    Zest of 1/2 lemon
1/4 cup roasted pine nuts
2/3 cup crumbled feta cheese (optional)