Cod with Spinach and Zucchini in a Spicy Sauce

Simple, quick and so delicious!  You can serve this with some garlic bread, rolls, polenta or just by itself.  Delicious! Enjoy!
-1 cup marinara sauce
-2 medium zucchinis, chopped
-salt and pepper
-1 lb cod fillets
-1 Tbs extra virgin olive oil
-2 cloves garlic, minced
-1/2 tsp crushed red pepper flakes
-1 lb baby spinach
In a large skillet add the marinara sauce and chopped zucchini.  Season with some salt and pepper (about 1/2 tsp each).  Bring to a simmer.  
Season both sides of each cod fillet with some salt and pepper.  Add to the zucchini mixture.  Cover and cook for about 7 minutes.
Meanwhile, heat oil in large pot.  Add the garlic and pepper flakes.  Cook for 1 minute, stirring continually.  Add the spinach and some salt.  Cover and cook for 5 minutes, stirring occasionally.
Place some of the spinach mixture on the bottom of a plate.  Top with a piece of cod and the zucchini sauce.  Enjoy!