How to Cook Rockfish Fillets

Mushrooms will absorb some of the fish's flavor.
Mushrooms will absorb some of the fish's flavor. (Image: Polka Dot Images/Polka Dot/Getty Images)

The rockfish, more commonly known as the striped bass, can grow up to six feet in length and migrates between fresh and salt water. Overfishing is a concern with rockfish, and as such, their meat is often expensive and available in small quantities. To cook rockfish fillets, you will need some fresh vegetables, everyday seasonings and approximately 30 minutes.

Things You'll Need

  • Six 8-oz. rockfish fillets
  • Baking dish
  • One 10-oz. can tomato sauce
  • 2 cups sliced button mushrooms
  • 1 diced white onion
  • 1/2 cup diced celery
  • 1 tsp. salt
  • 1 tsp. ground black pepper
  • Aluminum foil

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Preheat an oven to 350 degrees Fahrenheit.

Place the rockfish fillets in a baking dish in an even layer. Arrange them with 1/4 inch of space between each fillet. Pour the tomato sauce over the fillets.

Sprinkle the mushrooms, onion, celery, salt and pepper evenly over the top of the fish in the pan.

Cover the pan tightly with aluminum foil and bake for 30 minutes. Do not open the oven door as the fish bakes.

Remove the pan from the oven. Do not remove the aluminum foil; leave the pan to set for five minutes. Remove the aluminum foil and serve with the sauce from the pan over the top.

Tips & Warnings

  • Leftover rockfish will keep in the refrigerator for up to four days.


  • "Fish: The Complete Guide to Buying and Cooking"'; Mark Bittman; 1999
  • "Fish Without a Doubt: The Cook's Essential Companion"; Rick Moonen and Roy Finamore; 2008
  • "Cooking Basics For Dummies"; Bryan Miller, Marie Rama and Eve Adamson; 2011
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