Preheat the oven to 200°C (392°F). In a large bowl, combine the minced meat with the boiled rice and mix thoroughly. Add salt, meat seasonings, Provencal herbs, and ground black pepper, stirring to distribute evenly.
Grease a baking dish with vegetable oil. Form the meat mixture into balls of equal size and place them in the prepared dish.
In a separate bowl, mix together roughly equal amounts of water, sour cream, and mayonnaise. Pour the mixture over the 'hedgehogs.'