Lasagna Casserole

Ingredients (11)

• 1 pound ground beef
• 1/4 cup chopped onion
• 1/2 teaspoon salt
• 1/2 teaspoon pepper, divided
• 1 pound medium pasta shells, cooked and drained
• 4 cups shredded part-skim mozzarella cheese, divided
• 3 cups 4% cottage cheese
• 2 large eggs, lightly beaten
• 1/3 cup grated Parmesan cheese
• 2 tablespoons dried parsley flakes
• 1 jar (24 ounces) pasta sauce