Individual servings of fish baked in parchment paper are like presents at the table. The paper keeps the fish nice and hot. Diners carefully open the paper to a waft of aromatic heat. Warn them to be careful. Serve with a nice salad and crusty bread to soak up the sauce.

• Preheat the oven to 350°F.

• Place a serving of fish in the center of each of four 8-inch square pieces of parchment paper. Place one-fourth of the chopped tomato, green onions, and olives on top of each fish fillet.

• In a small bowl, combine the rest of the ingredients and whisk to blend. Spoon about 1½ tablespoons of the sauce over each fish fillet. Fold the parchment paper to enclose the fish and hold in the vegetables and sauce.

• Place on a baking sheet and cook in the preheated oven for about 15 minutes. Carefully set each parchment packet on a dinner plate and serve at once.