Zucchini Lasagna Recipe Type: Entree Cuisine: Italian Author: Prickly Gourmet Prep time: 15 mins Cook time: 45 mins Total time: 1 hour Serves: 6-8 servings Ingredients 6 or more large zucchini 1 (1-quart) jar thick marinara sauce 1 pound ricotta cheese 1 large onion, sliced 1/4 pound fresh mushrooms, sliced 1 tablespoon dried oregano, crushed