Begin by gathering all your ingredients. Ensure the cod fillets are thawed if previously frozen. Chop the garlic, halve the cherry tomatoes, and slice the black olives. Chop the fresh parsley for garnish.
Heat the olive oil in a large skillet over medium heat. Add the minced garlic and sauté for about 1 minute until fragrant. Be careful not to burn the garlic, as it can become bitter.
Add the halved cherry tomatoes to the skillet. Cook for about 5 minutes, stirring occasionally, until the tomatoes begin to soften and release their juices.
Stir in the sliced black olives and capers. Cook for an additional 2 minutes to allow the flavors to meld together.
Pour in the white wine, stirring to combine. Let the mixture simmer for about 3 minutes to allow the alcohol to evaporate and the sauce to reduce slightly.
Season the sauce with salt and black pepper to taste. Adjust the seasoning as needed to suit your preference.
Place the cod fillets in an oven-safe baking dish. Season them with a pinch of salt and black pepper.
Pour the prepared sauce over the cod fillets, ensuring they are evenly covered.
Preheat your oven to 375°F (190°C). Bake the cod in the preheated oven for about 20 minutes, or until the fish flakes easily with a fork.
Remove the cod from the oven and sprinkle with the chopped fresh parsley. Serve immediately, spooning the sauce over the fillets.