Start by boiling the pasta according to the package instructions till al dente or more if you like.
In a blender add the roasted peppers and blend until you obtain a creamy consistency.
In a pan heat some olive oil. Add the shallot and garlic and leave it at medium heat for about a minute.
Add the sausage peeled and let it cook. Add the peppers and basil and salt per taste. Let it simmer until the meat is cooked. If the sauce looks dry, add some pasta water.
Drain the pasta and add it to the sauce, mix until it's combined.