Heat a medium sauté or saucepan. Add enough oil to coat the bottom of the pan, add onion and sauté until lightly translucent. Add garlic and stir for about a minute. Crush or squish tomatoes and add tomatoes and remaining ingredients except the fish then simmer about 10 minutes. Set aside and keep warm.
Heat a large sauté pan over medium heat; add enough oil to coat the bottom of the pan. When oil is hot carefully place dried fish fillets into oil, it should start to simmer right away. Cook about 3-4 minutes and turn carefully for another 4 minutes.
Serve with sauce.