Johnsonville® Italian Sausage Lasagna

1 (16 ounce) package Johnsonville® Italian Ground Sausage

12 lasagna noodles, cooked and drained

1 medium onion, chopped

2 garlic cloves, minced

4 cups marinara sauce

1 teaspoon dried oregano

2 (15 ounce) containers ricotta cheese

1 egg, beaten

½ cup grated Parmesan cheese, divided

2 cups fresh spinach, chopped

2 cups shredded mozzarella cheese

In a skillet, cook sausage, onion and garlic until pork is no longer pink and onion is tender; drain. Add marinara sauce and oregano; simmer for 5 minutes. In a bowl, combine ricotta cheese, egg, 1/4 cup Parmesan and spinach.

In a greased 13-in. x 9-in. x 2-in. baking dish, spread 1 cup meat sauce. Arrange 3 noodles over sauce. Spread one-fourth of the ricotta cheese mixture over the noodles, top with 1 cup of meat sauce. Sprinkle with 1/2 cup mozzarella cheese. Repeat process 3 times. Top with remaining Parmesan cheese. Bake, uncovered, at 350 degrees F for 40 to 45 minutes. Let stand for 10 minutes before cutting. Serve.