Mix the minced meat and rice in a deep container. Mix thoroughly. Form small balls by moistening your palms with water. Take a baking pan, grease it with a small amount of vegetable oil. Put the "hedgehogs" on the bottom.
Place a frying pan on high heat, add vegetable oil. Place onion and carrot in a heated container. Sauté the vegetables for 5-6 minutes. Then add flour and cook, stirring, for another 2 minutes. Then add tomato paste, cream. Bring to a boil and cook for another 1 minute. Remove the sauce from the stove.
Pour the prepared sauce into the baking pan where the "hedgehogs" are already lying. Cover the pan with foil and place it on the middle level in the oven already preheated to 200 ℃ for 40 minutes. Then remove the foil, move the container to a higher level and leave for another 15 minutes.