Add water and egg to oatmeal, mix. Leave on for 30 minutes to swell the oatmeal. Add finely chopped onion, a mixture of oatmeal, salt, pepper to the minced meat, mix well and beat off. Put in the refrigerator for 30 minutes. Roll the minced meat into walnut-sized meatballs, place in a greased baking dish and send to the oven, preheated to 190 ° C, for 15 minutes.
In the meantime, prepare the sauce: pour the cream and milk into a deep plate, add the cheese grated on a fine grater, mix. After 15 minutes of baking, remove the meatballs from the oven, pour over the sauce and send to bake for another 20 minutes.
Sprinkle the finished dish with finely chopped herbs.