1. In a large deep pan over high heat, add the olive oil, garlic, chili pepper flakes, thyme and onions. Cook for 5 minutes, until onions are translucent.
2. Add the green bell peppers and tomato paste and cook for 2 minutes.
3. Add the basil, fish sauce, salt, water and tomato sauce, stir well and bring to boil.
4. Lower heat, cover and simmer for 40 minutes.

For the meatballs:

1. In a large mixing bowl, add all the ingredients for the meatballs and using your hands, mix well.
2. Shape into small, two bites size meatballs and one by one, add them to the sauce without stirring.
3. Wait a couple of minutes, to let the outside of the meatballs cook, then slowly stir and cover them with sauce. Cook for 40 minutes.
4. Bring a large pot of salted water to boil. Cook spaghetti and drain well. Serve with meatballs, sauce and freshly grated parmesan cheese.