Preheat the oven to 350°F (180°C).

Wash and trim the tomatoes, dice them, and set aside.

Rinse the capers under running water and set aside.

Slice the black olives into rounds and set aside.

Place the plaice fillets in a baking dish. Season with salt, add the black olives, tomatoes, black pepper, capers, extra virgin olive oil, and 1 cup of water. Bake for about 20 minutes.

After baking, turn off the oven. Using oven mitts, remove the baking dish and place it on the counter.

Plate the fish and serve with its cooking juices.