Wash the turkey breast fillets, pat dry and season with salt and pepper on both sides. Clean and slice the mushrooms.
Heat 4 tablespoons of the butter and fry the mushrooms in it. Pour in the broth and bring to the boil once.
Pour the tomatoes into a colander, drain and collect the juice. Roughly chop the tomatoes and remove the stalks. Add to the mushrooms with the tomato juice, olives, thyme and cream. Simmer for a few minutes and season with salt and pepper.
Fry the meat in the remaining butter on both sides for 2 - 3 minutes. Pour the sauce over the schnitzel and finish cooking.