1: Preheat oven at 450°F.
2: In a fish or casserole dish, add sliced tomatoes, red onion, and garlic; season with olive oil, salt, and pepper; mix well and roast for about 15 minutes.
3: Add olives, capers, white wine, and lemon juice; mix and nest cod filets, seasoning with remaining olive oil, salt, and pepper.
4: Bake for another 12 minutes, finish with parsley, and enjoy!
