We grind the telemeau and the cheese, we cut the olives into slices, we do the same with the donut and the chicken breast. We break the eggs in a large bowl and mix until they become a little frothy. Add the milk, then gradually the oil and mix until smooth. Incorporate the flour mixed with the baking powder and continue mixing. Over the obtained composition add the olives, mushrooms, donut, chicken breast and season with salt and pepper. Pour the composition in a tray lined with baking paper and put in the preheated oven for about 45-50 minutes.
It is a tasty appetizer that can be served both hot and cold.