Into a blender, add tomato, tomato paste, onion, garlic cloves, curry powder and water. Blend till smooth.
Into a pot on low heat, add the tomato blend, some salt and pepper and vegetable oil. Let it cook till it becomes a thick sauce.
In the meantime, air fry the meatballs at 180°C for 10 minutes. Once done, remove the meatballs from the air fryer and put them into the sauce. Stir to ensure each piece is well coated.
Cook noodles according to the instructions on the package. Drain excess water. While still hot, add butter and toss.