Step 1

Cook the pasta until it is the tenderness that you desire. Drain and rinse the pasta with cold water to stop it from continuing to cook while it cools. Melt the butter in a large skillet or dutch oven over medium heat. Add the onion and cook, stirring occasionally, for a few minutes, until it begins to soften.

Step 2

Add the bell peppers and the mushrooms. Sprinkle with 1/2 a teaspoon of salt and continue sauteing until the peppers soften and the mushrooms are browned and tender. Drain any liquid from the pan and sprinkle with the remaining salt and the garlic. Saute for just a minute more and then transfer to a waiting bowl.

Step 3

Add the sausage to the pan, cook and crumble it over medium heat. Drain any grease and then add the cooked vegetables to the pan with the meat. Stir to combine and make sure everything is still hot. Pour the marinara sauce into the pan and stir to coat everything well. Add the cooked pasta and stir gently to combine.

Step 4

Serve immediately, with cheese sprinkled on each serving. Or, transfer the mixture to an oven safe dish, top with cheese and bake in a hot oven for just a few minutes, until the cheese has melted. Enjoy!