The easiest way to make a delicious lasagna, all in one skillet and super simple!
Set a large, oven safe skillet (I used cast iron) over medium heat and add the olive oil. Once the olive oil is hot add the ground Italian sausage, cook 7 to 9 minutes breaking it apart as it cooks.
Drain excess grease and set back over medium heat. Add the spinach, kosher salt, pepper, and garlic. Cook 5 minutes, stirring occasionally.
Add the pasta/ marinara sauce and the 1/2 cup red wine (or water).
Break the oven ready lasagna noodles into pieces and stir them into the sauce. Let this simmer over medium low heat 7 minutes, stirring occasionally.
Stir in half of the ricotta and mozzarella cheeses. Spoon dollops of the remaining ricotta over top an inch or so apart over the lasagna.
Place the skillet carefully into a 375 degree oven for 35 minutes. Add remaining mozzarella cheese over top and bake 5 to 10 more minutes until cheese is melted.
Serve with garlic bread and parsley for garnish is desired.