For the chicken breast in creamed spinach, first heat oil in a large frying pan and sauté onions until translucent. Add chicken fillet and fry until crispy on both sides.
Cook pasta in salted water until al dente, drain and let drain.
Add spinach to the frying pan, heat, season vigorously with wine, salt and freshly ground pepper.
Arrange pasta on plates, top with chicken breast cut into small pieces and spread spinach evenly on top. Serve the chicken breast in creamed spinach immediately.
Instead of pasta, potatoes also go well with chicken breast in creamed spinach.