Cut the bell pepper and onion into small pieces and sauté in the hot oil. Press or finely chop the garlic and add, simmer everything for about 5 minutes over low heat.
Whisk the sour cream, Emmentaler, tomato paste, processed cheese, cream, salt and pepper and add to the vegetables, let the sauce melt at a low temperature while stirring carefully.
Add the tomatoes cut into small pieces to the sauce and season with paprika powder. Bring everything to the boil again very briefly and then stir in the finely chopped herbs.