In a large frying pan, cook the sausages thoroughly and set aside on a plate to rest.
In a large pot, bring heavily salted water to a boil for the pasta. Once the water is boiling, add the dried pasta and cook it to al dente according to the directions on the package. Once cooked, drain the pasta, run it under cold water to prevent it from sticking together and set it aside.
Meanwhile, prepare and chop the onion, peppers and mushrooms.
Heat 2 tablespoon of olive oil over medium heat in the same pan used for cooking the sausages. Sauté the diced onion until it turns translucent.
Pour the white wine into the pan with the sautéed onions. Stir for about 1 to 2 minutes to cook off the alcohol and thoroughly deglaze the pan.
Add the thinly sliced red bell peppers and the sliced cremini mushrooms to the pan. Cook them for a few minutes until they soften.
Now, add the heavy cream, grainy Dijon mustard, crushed chipotle peppers in adobo sauce, and maple syrup and tomato paste if using. Season the mixture with salt and pepper according to your taste.
Let the sauce simmer until it reduces and coats the back of a spoon. This takes approximately 15 minutes. Take your time to taste the sauce and adjust the seasoning.
Slice the cooked sausages into thin coins and add them to the sauce. Add the cooked pasta with the sauce as well, stir until they are evenly coated in the sauce.
To finish, sprinkle the dish with freshly chopped parsley and a sprinkle of crushed red pepper flakes to add additional spiciness. Serve hot and enjoy!