In a large bowl, combine minced beef, rice, split peas onions, fresh parsley, fresh coriander, dried oregano, fresh mint, dried tarragon, turmeric powder, salt and pepper. Knead ingredients together until well combined.
Divide the mixture into 60-gram portions, and shape them into small balls. With your thumb, create a hollow indent in the middle of the ball and fill it with prunes, walnuts and friend onions. Fold the edges together and roll into a ball until it is firm and the edges are smooth.
In a medium size pot, on medium-high heat, add onions and vegetable oil. saute onions until they have a golden brown colour. Add turmeric and black pepper, stir for ten seconds and then add the tomato paste and saute for one minute. Add boiling water, salt, and the meatballs. Reduce the heat and allow to simmer on low heat for a least 1 hour, until the meatballs are cooked through and the sauce as thickened.