Let's prepare the necessary ingredients.
Peel the potatoes, cover with water, add salt (1 tsp.) and boil until done.
700 g potatoes, 2 tsp salt
While the potatoes are cooking, cut the chicken fillet into small pieces.
600 g chicken fillet
Also, cut the onion into small cubes.
1 pc onion
Grate the garlic cloves on a fine grater or crush using a press.
3-4 cloves garlic
Lay out the chopped fillet in a bowl and add the chopped onion to it.
To the bowl with the meat and onion, add grated garlic, salt (1 tsp.), pepper, and dry spicy herbs (rosemary, thyme, oregano, or others). Instead of individual herbs, you can add a ready-made chicken seasoning mix.
3-4 cloves garlic, 2 tsp salt, 1 tsp pepper, 2 tsp mix of Provencal herbs
Add a few tablespoons of sour cream to the spicy meat, onion, and herb mixture. If desired, half of the sour cream can be replaced with mayonnaise. Mix everything thoroughly.
4 tbsp sour cream
Lay out the prepared mixture of meat, onions, sour cream, and spices in a heat-resistant form and send it to the oven preheated to 200 ˚C for 25 minutes.
While the meat is baking, prepare the mashed potatoes. To do this, mash the boiled potatoes into a homogeneous mass with the addition of milk.
⅔ cup milk
Take the form out of the oven and cover the meat with a layer of mashed potatoes.
On the surface of the puree, make 'waves' with a spoon, which we fill with melted butter. Send the prepared casserole back to the oven preheated to 200 ˚C for another 25 minutes.
50 g butter
Garnish the finished dish with fresh herbs and serve. Bon appétit!