Clean and quarter the mushrooms. Peel and finely chop the shallot.
Fry the ham cubes without fat in a pan, after about 3 minutes add the shallot cubes and sweat until translucent, then add the mushrooms and fry for another 3 minutes. Possibly add a little butter. Deglaze with the broth and cream, add the peas, bring to the boil and cook for about 5 minutes without a lid, reducing the liquid. If too much liquid evaporates, you can add a little more broth or cream. Finally, add the grated Emmentaler to the sauce.
In the meantime, cook the tortellini in salted water as instructed, drain and arrange on a plate.
Cut the basil leaves into strips, add to the sauce and spread everything over the tortellini. Garnish with a basil leaf and sprinkle the parmesan on top.