Oysters Mosca

Updated Feb. 4, 2025

Oysters Mosca
David Malosh for The New York Times. Food Stylist: Simon Andrews.
Total Time
50 minutes
Prep Time
15 minutes
Cook Time
35 minutes
Rating
5(25)
Comments
Read comments

In this one-pan gratin, inspired by a favorite appetizer at Mosca’s, an Italian restaurant just outside of New Orleans, fresh oysters are covered in a garlicky butter sauce, topped with a mélange of breadcrumbs and freshly grated Parmesan and baked until tender yet juicy. It’s a hit with those who love oysters — and even those who aren’t fans of raw ones. The shellfish are full of flavor from the Creole seasoning that accents the sauce, with a hint of Italian influence from the herbs and Parmesan. At Mosca’s, they use plump Gulf oysters from nearby waters, a variety that’s especially good cooked and worth seeking out if you live near the Gulf Coast. Otherwise, any oysters work: Using preshucked oysters packed in their liquor at your local grocer or fishmonger makes preparing this dish a breeze. Best enjoyed warm from the oven, this appetizer is meant to be shared with a group.

Featured in: New Orleans Is an Oyster Town Like No Other

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Ingredients

Yield:4 to 6 servings
  • 16ounces shucked oysters and their liquor
  • cup bread crumbs 
  • cup freshly grated Parmesan (about 2 ounces)
  • 2½ teaspoons Italian seasoning
  • 2½ teaspoons homemade Creole seasoning (or store-bought)
  • 3tablespoons unsalted butter
  • ½cup finely chopped scallions (from 4 scallions)
  • Salt
  • 2tablespoons minced garlic (from 4 large cloves)
  • 2tablespoons chopped flat-leaf parsley
  • 3thyme sprigs
  • 2tablespoons extra-virgin olive oil
  • Fresh lemon wedges, for serving 
  • Toasted baguette slices or crackers, for serving
Ingredient Substitution Guide
Nutritional analysis per serving (6 servings)

287 calories; 15 grams fat; 6 grams saturated fat; 0 grams trans fat; 6 grams monounsaturated fat; 2 grams polyunsaturated fat; 23 grams carbohydrates; 2 grams dietary fiber; 2 grams sugars; 14 grams protein; 369 milligrams sodium

Note: The information shown is Edamam’s estimate based on available ingredients and preparation. It should not be considered a substitute for a professional nutritionist’s advice.

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Preparation

  1. Step 1

    Drain the oysters, reserving the oyster liquor (the salty liquid in the container or oyster shell). You should have approximately ½ cup of oyster liquor.

  2. Step 2

    In a small bowl, combine the bread crumbs, Parmesan, 1½ teaspoons Italian seasoning and ½ teaspoon Creole seasoning. Set aside.

  3. Step 3

    Place rack in the center of the oven and another 4 inches from the broiler. Heat the oven to 400 degrees.

  4. Step 4

    Melt the butter in a 10-inch cast iron skillet over medium heat. Add the scallions and a dash of salt. Cook, stirring often, for 3 minutes, or until they have softened. Add the garlic and cook, stirring often, until the garlic is very fragrant, 1 to 2 minutes, reducing the heat if the garlic starts to brown.

  5. Step 5

    Sprinkle the remaining 2 teaspoons Creole seasoning and 1 teaspoon Italian seasoning over the scallions and garlic. Stir in the parsley and add the thyme sprigs. Add the oyster liquor and cook until most of the liquid has evaporated, stirring occasionally, 4 to 5 minutes. Remove the thyme sprigs and discard.

  6. Step 6

    Add the oysters, gently stirring just until they are covered in the garlicky butter sauce. They should be in an even layer in the pan without overlapping. Turn off the heat and remove the pan from the burner. Sprinkle the crumbs over the oysters, covering everything completely to the very edges of the pan. Drizzle the top with the olive oil.

  7. Step 7

    Transfer to the oven and bake on the center rack until bubbling around the edges, 12 to 15 minutes. If the top is not yet golden brown, broil just until the top browns. Remove the skillet from the oven and let cool for 5 minutes before serving warm, with lemon wedges and toasted baguette slices or crackers.

Ratings

5 out of 5
25 user ratings
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Comments

Mosca’s is a truly great restaurant, their version of New Orleans Italian cooking is sublime. The oysters Mosca, the crab salad, and the Chicken Ala Grande have my mouth watering right now. I may take the drive down later in the day! Hopefully I’ll get to se Miss Mary Jo!

I prefer to sauté my oysters in butter before placing in pan with toppings and to drain and use a portion of this liquid to use in the gratin pan (vs. the jarred brine of the oysters). Oysters (especially the larger Gulf oysters) release so much liquid when cooked, the dish can end up soggy as an insufficient volume of the oyster liquor evaporates before the breadcrumb and cheese topping over browns. A little more butter, less oyster liquor provides the right balance of moisture.

@ACE - In any grocery store’s spice aisle spice aisle, in a bottle labeled Italian Seasoning.

There is nothing like Oysters Mosca! however, there are a million recipes for 'this' exact thing, which isn't a bad thing! That all said, how can you ever go wrong with butter, garlic, lemon, etc., etc....??? You can't lose!

Serve with angel hair pasta, just like they do at Mosca's.

If you’re eating raw oysters, eat them with saltine crackers! If oysters are prepared any other way they should only be eaten with a delicious toasted slice of a French baguette!

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Credits

By Vallery Lomas

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