Hands On: 15 minutes
Total: 40 minutes
1. Preheat oven to 350F. Spray 13- x 9-inch baking dish with cooking spray; set aside. Cook pasta according to package directions. Meanwhile, brown sausage in large nonstick skillet over medium-high heat, stirring occasionally to crumble the sausage; drain. Stir in diced tomatoes and the tomato paste; cook until heated through, stirring occasionally. Remove from heat. Stir in 1 cup of the mozzarella cheese.
2. Drain pasta; rinse under cold water. Set aside. Beat eggs lightly in large bowl. Stir in Parmesan cheese, if desired. Add pasta; toss to coat. Press firmly onto bottom of prepared dish. Top with the sausage mixture; sprinkle with the remaining 1 cup mozzarella cheese.
3. Bake 32 to 35 minutes, or until sausage mixture is heated through and cheese is melted. Let stand 5 minutes before cutting into 8 squares to serve.