Preheat the oven to 350 degrees. Make lemon butter. Melt 2 Tbsp. butter in a small bowl, then stir/whisk in lemon zest, lemon juice, garlic powder, and a sprinkle of salt and pepper. Set aside. Prepare cod. Brush the cod fillets with 1 Tbsp. olive oil and sprinkle with salt and pepper. Set aside.

Heat 3 Tbsp. olive oil in a cast-iron skillet on medium-high heat. Sear the cod on each side for only 1-2 minutes, then remove from the skillet and place on a plate.

Now add shallots, tomatoes, and olives and cook for 2 minutes. Then add garlic, herbs, and a sprinkle of salt and pepper. Cook another 2 minutes. Gently place the cod fillets on top of the mixture and cook in the oven for 15-20 min. Remove from the oven and pour the butter mixture over each fillet. When ready to serve, divide the cod fillets and tomato/olive mixture onto four plates and spoon the sauce over each portion. Enjoy!