Wavy Lasagna with Italian Sausage and Marinara Sauce

Instructions

1. 1
   Preheat oven to 375° F.
2. 2
   Cook pasta according to package directions. Drain, set aside.
3. 3
   In a large skillet sauté onions in olive oil until translucent, about 5 minutes, then add crumbled sausage, salt, pepper and brown well until cooked through (Optional: deglaze sausage with wine and reduce). Add 3 ½ cups Marinara sauce to the sausage mixture, bring to a boil. Remove from heat.
4. 4
   Spray a 13 x 9 inch baking dish with cooking spray.
5. 5
   Pour 1 cup Marinara sauce on the bottom. Layer 5 sheets of lasagna, top with 1 cup of sausage mixture, ½ cup ricotta and 2 tablespoons of Parmigiano-Reggiano cheese. Repeat for 2 more layers.
6. 6
   On the top layer pour the remaining sauce and Parmigiano cheese. Add mozzarella and cover with foil.
7. 7
   Cover in foil and bake for 25 minutes. Uncover and bake for another 5 minutes. Let rest 15 minutes before serving.