Wash the tomatoes, remove the stalk, cut the tomatoes into slices. Peel and halve onions and cut them into slices. Cut bacon into strips. Chop peanuts and put them on a plate.
Season schnitzel with salt and cayenne pepper. Whisk the egg white. Put the flour on a plate. Turn the schnitzels in flour one after the other, pull through the egg white and roll in the nuts. Fry at low heat for 8-10 minutes in 3 tablespoons of hot oil.
In the meantime, put the beans in boiling salted water, blanch for 5 minutes, and rinse with cold water. Fry the bacon in the remaining oil. Add onions, fry for 5 minutes. Fold in the beans and tomatoes, fry over high heat for 3 minutes.
Season with salt and cayenne pepper. Arrange vegetables and schnitzel on a plate. Serve with mashed potatoes and parsley.