Serves 4 Beef Stroganoff Recipe Type: Entree Ingredients 3 cups button mushrooms, sliced 1 cup shitake mushrooms, sliced 1 large onion, sliced 3 garlic cloves, minced 2 tablespoons, plus 14 ounces no-salt-added beef broth 1 pound flank steak, thinly sliced 2 tablespoons Zippy Ketchup 1/2 teaspoon garlic powder Tofu Sour Cream (recipe below) 1 medium