Preheat oven to 350 degrees F. Season sole fillets with salt.
In a small bowl, whisk together oil and lemon juice. Pour into a 13X9 glass baking dish. Add fish and coat each fillet with the lemon-oil mixture. Lay each fillet in a single layer on the pan.
Sprinkle fillets evenly with breadcrumbs, then with the cheese and finish with a sprinkle of paprika.
Bake in the oven for 15-20 minutes or until fish flakes easily with a fork. Cooking time may vary depending on the thickness of the fillets.