3. Step
Arrange salmon on one side of the prepared baking sheet. Sprinkle with the remaining 1/4 teaspoon each salt and pepper. Cover the tops of the fillets with mozzarella pieces. Fill the other side of the pan with the tomato mixture. Bake until the salmon is just cooked through and the tomatoes have broken down, 8 to 10 minutes. Stir basil into the tomato sauce and serve over the salmon. Drizzle with balsamic glaze.