Potato gratin with chicken strips

Saut the chicken meat pieces well with garlic, mustard, and thyme dressing
Black pepper
Then saute the onion slices with olive oil well, then add the fried chicken slices and mix them together, then fry the potatoes and prepare the oven tray with butter to put on top of a first layer of potatoes, then the chicken breast slices with onions, then prepare a creamy mixture of cream, cheese, milk and The eggs and put them on the baking tray above the rest of the ingredients

The cooking time does not exceed 30 minutes