PLACE corn meal and flour in large bowl; cut in shortening with pastry blender or two knives until mixture resembles coarse crumbs. Gradually add water, kneading until smooth. Add chiles; mix well. Form dough into 16 small balls. Pat each ball into 3-inch patty; place on wax paper.
HEAT 1 teaspoon oil in large skillet over medium-high heat for 1 to 2 minutes. Cook patties for 3 minutes on each side or until golden brown, adding additional oil as needed to prevent sticking.
TOP with beans, cheese, taco sauce, jalapeño slices, sour cream and green onions.