In a food processor, place the fish, onion, garlic, and red bell pepper and process until it looks like ground beef. Mix with the bread crumbs, egg, salt, and pepper. Form the mixture into 8 balls.

To make the sauce: In a medium sauce pan over medium heat, sauté the onion and peppers. Cook until the vegetables have softened, about 6 minutes. Add the garlic and cook for 2 minutes more. Season with salt and black pepper and add the tomatoes and coconut milk. Simmer until the sauce has thickened and the vegetables are very tender, about 5 minutes.

Add the balls to the pan. Cook for about 5 minutes, covered, then turn the balls in the sauce and cook for another 5 to 7 minutes, until the balls are cooked completely.