Remove the mince at least an hour before using, so the meat won't be as cold for your hands.
Place the minced beef, parsley, egg, breadcrumbs, wine, chopped spring onion, paprika, and a pinch of salt into a mixing bowl and mix well. Shape the mix into small meatballs, rolling pieces of it with your hands. Lightly coat the balls in the flour.
Heat a drizzle of sunflower oil in the skillet or a large pan. Cook the meatballs in batches until golden brown. Transfer the meatballs into a separate plate for now.
Heat a little more oil in the previously used skillet and quickly fry the chopped spring onion greens on a medium heat. Add the chopped tomatoes and cook them, breaking them as you go, for 6-8 minutes.
Add passata and 1.5 cups of water and season with salt. Bring the sauce to the boil and add the meatballs. If you feel like the tomato sauce is too chunky, you can blend it first.
Simmer the meatballs in the sauce for 15-20 minutes and serve, for example with brown rice and a salad or mashed potatoes!