Preheat oven to 350 degrees. In a 9x12 pyrex pan or other glass baking dish, spread around chopped tomatoes, basil leaves and minced garlic, drizzle with 1 tablespoon of olive oil and season with salt and pepper. Bake for 20-25 mins, or until tomatoes are soft and skin starts to blister. Remove baking dish from oven and reduce heat to 300 degrees.

Move tomato basil mixture to the sides of the baking dish, and place cod fillets side by side, tilting baking dish to allow the tomato juices to coat the cod edges slightly. Season cod with salt and pepper and drizzle with remaining tablespoon of olive oil. Bake for an additional 15 minutes until cod is done through, but not overdone/dry. Serve immediately.