If you like it with sweet pepper.. then pre-bake the pepper in the oven..Then peel it from the skin and seeds.
Mash canned tomatoes together with pepper.
We transfer it to the frying pan.Salt, pepper, add garlic and red pepper to taste. If you are using dry dill or parsley, add it now. If it's fresh at the end. As soon as the pasta boils, turn down the heat and add the melted cheese (break into small pieces).
Cook over medium heat until the cheese is completely dissolved, stirring constantly.