- nonstick cooking spray
- 4 (4 ounce) fillets halibut
- salt and ground black pepper to taste
- 8 ounces fresh mozzarella cheese, sliced
- 8 large whole basil leaves
- 8 tomato slices
- 3 tablespoons balsamic vinegar
- 1 1/2 tablespoons olive oil
- 1/3 cup chopped fresh basil
- Preheat oven to 450 degrees F (230 degrees C). Place an oven rack about 5 inches from the heat source. Prepare a baking sheet with cooking spray.
- Arrange halibut on prepared baking sheet and bake until lightly browned, 4 to 6 minutes. Flip fillets, season with salt and black pepper, and continue cooking until flesh is opaque, 1 to 2 minutes more.
- Top each fillet with a mozzarella cheese slice, a basil leaf, and a tomato slice, respectively; repeat layers.
- Return halibut to oven and bake until cheese begins to melt, about 2 minutes.
- Whisk balsamic vinegar and olive oil together in a bowl; soon over halibut portions. Garnish with chopped basil to serve.