Put tomatoes into the blender and set aside.
In a non-stick pot, fry pre-cooked meat in oil until browned, then remove and set aside.
Add onions to the pot and fry until soft before adding garlic and blended tomatoes.
Add meat stock and/or stock cube(s), tomato paste, ground white and black pepper; stir well.
Cook for ± 10 minutes on medium heat before adding rice. Mix well, cover, and cook on low heat for ± 20 minutes.
Add vegetables, 1 cup more of water, and continue cooking on low heat until rice is done.
