Heat oven to 400 degrees and prepare all ingredients in separate bowls.
Rinse fish and pat dry. Spray a deep, glass rectangular baking dish with cooking spray.
Place fish, flesh side up in glass dish, push together as if one continuous fillet. This allows the other ingredients to hold better on top.
Pour lemon juice over fillets followed by salt and pepper seasoning, lemon zest and dill.
In layers, place scallions, tomatoes and then mix of bell peppers on top of the fish. Pour white cooking wine in the bottom of the dish (not over the fish). This will allow the fish to steam and not dry out while baking.
Cover with aluminum foil and allow to sit for 5 minutes before placing in the oven. Cook covered for 10 minutes. Remove aluminum foil, just barely separate each fillet so they can cook evenly on the sides, place back in over for 5 minutes or until fish flakes easily with a fork.
Sprinkle Parmesan cheese over bell peppers and return to the oven until melted (2-3 minutes).