2Slice the whole spring red onion and add it to a baking dish along with tomatoes, olives, Calabrian chili peppers, garlic, oregano, thyme, olive oil, salt and pepper.
3Roast your veggies until softened.
4Add white wine.
5Season your cod fillets with olive oil, salt and pepper and nest them into the veggies.
6Bake in the oven until bubbly and delicious.
7Garnish with grilled lemon and fresh basil leaves.