dice a medium sized onion, mince a coupla cloves of garlic, brown onions and garlic in olive oil in a skillet. add 1 large can of whole tomatoes, crushed by hand as you add them, and a small can of tomato paste. add 2 tbsps of capers, and 3 tbsps of crushed red pepper flakes. simmer uncovered until thickened. add the haddock and cleaned shelled shrimp, cover and simmer 5 minutes until fish is cooked thru. voila', haddock and shrimp fra diavolo.