Heat a large skillet to medium heat and spray with cooking spray.  Remove the casings from the sausage and place into skillet.  Continue to cook sausage until browned, breaking it up into bite size pieces as you cook.

While sausage is browning, chop you bell peppers into small pieces.  Add to the skillet after meat is browned and cook for about 3 minutes until peppers are softened.

Add the pasta and marinara sauce to skillet.  Fill the marinara jar with water and add the jar full of water to the skillet as well.  Stir the ingredients in the mixture.

Turn the heat up to medium high to bring the skillet to a low simmer boil.  Cover skillet and cook for about 15 minutes until the pasta is tender and most of the liquid is absorbed.  Stir pasta every few minutes to ensure it does not get stuck together.

Sprinkle shredded cheese on top of mixture and heat for 2 minutes on the stovetop, until cheese is mostly melted.  If you would like cheese to be browned, place under broiler for a few minutes for a crunchy cheesy top.

Enjoy!