Lasagna Casserole Total Time Prep: 15 min. Bake: 1 hour + standing Makes 8 servings Ingredients ground beef -1 pound chopped onion-1/4 cup salt -1/2 teaspoon divided -1/2 teaspoon pepper medium pasta shells, cooked ,and drained -1 pound skim mozzarella cheese, divided-4 cups shredded part lightly beaten -2 large eggs, grated Parmesan cheese -1/3 cup dried parsley flakes -2 tablespoons pasta sauce -1 jar (24 ounces) Direction In an e...