Wash and clean the tomatoes and cut them into pieces. Peel and chop the onions. Rinse turkey escalopes cold and dab dry. Cut in half and put 1-2 sage leaves on each. Fry in hot oil on both sides for about 3 minutes. Season with salt and pepper.
Remove from the pan and keep warm. Steam onions in the frying fat until translucent. Add tomatoes and braise for about 5 minutes while stirring. Add the pepperoni. Season with tomato seasoning salt. Arrange turkey escalopes on top