Instructions

  1. Spread 2 tablespoons of the oil in a large cast iron or ovenproof frypan.
  2. Layer potatoes, onion and half each of the salt and pepper in pan; sprinkle with 1 tablespoon of the remaining oil.
  3. Heat over high heat until sizzling, about 2 minutes.
  4. Reduce heat to medium; cover and cook for 12 minutes.
  5. Meanwhile, in bowl, mix together tomatoes, garlic, parsley and remaining oil, salt and pepper; set aside.
  6. Remove pan from heat.
  7. Arrange fish over potatoes; top with tomato mixture.
  8. Sprinkle with fennel seeds or oregano.
  9. Bake in 450f degree oven until fish flakes easily when tested, about 12 minutes.