Jul 14 2026
Restaurants›The River Oyster Bar›Grouper Mushroom Crusted Recipe

Grouper Mushroom Crusted Recipe

Inspired by The River Oyster Bar
Time1h 15m
Serves4

mashed potatoes, cipollini, mushroom jus

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Ingredients

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Grouper

Mushroom Crust

Mashed Potatoes

Cipollini Onions

Mushroom Jus

Method

Grouper Preparation

  1. 1

    Season the Grouper

    Preheat your oven to 375°F (190°C). Season the grouper fillets with salt and black pepper on both sides.

  2. 2

    Sear the Grouper

    In a large oven-safe skillet, heat olive oil over medium-high heat. Add the grouper fillets and sear for 3-4 minutes on each side until golden brown. Remove from heat.

Mushroom Crust

  1. 3

    Prepare the Mushroom Mixture

    In a food processor, combine the mixed mushrooms, minced garlic, and chopped parsley. Pulse until finely chopped.

  2. 4

    Combine Ingredients

    In a bowl, mix the chopped mushroom mixture with bread crumbs, grated Parmesan cheese, and melted butter until well combined.

  3. 5

    Apply the Mushroom Crust

    Spread the mushroom crust evenly over the seared grouper fillets. Press it down gently.

Mashed Potatoes

  1. 6

    Boil the Potatoes

    In a large pot, add the cubed potatoes and cover with water. Bring to a boil and cook for about 15-20 minutes until fork-tender.

  2. 7

    Mash the Potatoes

    Drain the potatoes and return them to the pot. Add butter, milk, salt, and pepper. Mash until creamy and smooth.

Cipollini Onions

  1. 8

    Sauté the Onions

    In a skillet, heat olive oil over medium heat. Add the peeled cipollini onions, season with salt and pepper, and sauté for about 10-12 minutes until caramelized and tender.

Mushroom Jus

  1. 9

    Prepare the Jus

    In a saucepan, combine sliced mushrooms, vegetable broth, and red wine. Bring to a simmer and cook for about 15-20 minutes until reduced and slightly thickened.

  2. 10

    Season the Jus

    Add fresh thyme, salt, and black pepper to the jus. Stir well and remove from heat.

Final Assembly

  1. 11

    Bake the Grouper

    Place the skillet with the crusted grouper in the preheated oven and bake for 15-20 minutes, until the fish is cooked through and flakes easily.

  2. 12

    Plate the Dish

    On serving plates, spoon a generous portion of mashed potatoes, place a grouper fillet on top, add sautéed cipollini onions, and drizzle with mushroom jus.

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