Shrimp Fra Diavolo II

Again on the vein of healthy eating.  I really like seafood and shrimp so I decided to make myself a treat and cook this for supper.  I was a little dissapointed in the flavour.  I was expecting something fiery and spicy.  I think my downfall was adding the extra cup of water if I had to make it again I would not add the extra cup of water.  If you try this and find that it is flavourful let me know what you did.

Shrimp Fra Diavolo II

Ingredients

3/4 lb shrimp, peeled and deveined
salt and black pepper to taste
1/2 tbsp olive oil
2 tsp red pepper flakes
1 small onion, chopped
2 cloves garlic, minced
1/4 tsp dried oregano or thyme
1 can (28 oz) crushed tomatoes
1 cup dry white wine
8 oz spaghetti
2 tbsp chopped flat-leaf parsley

Directions
Season the shrimp with salt and pepper. Heat the oil in a large skillet or saute pan over medium heat. Add the shrimp and cook for 1 to 2 minutes, until just firm. Remove to a plate.
Add the pepper flakes, onion, garlic, and oregano to the pan; cook until the onions are soft. Add the tomatoes and wine and simmer for 10 to 15 minutes.
Meanwhile, cook the spaghetti according to the package instructions. Drain and return to the pot.
Season the sauce with salt and pepper. Fold the cooked shrimp into the sauce. Pour the pasta and toss. Serve garnished with the parsley.