Oysters au Gratin with Spinach & Breadcrumbs


These succulent baked oysters thrill with spicy spinach and a crispy cheese topping.

Prep Time:
35 mins
Additional Time:
10 mins
Total Time:
45 mins
12 oysters


  • 12 oysters, rinsed

  • 1 tablespoon extra-virgin olive oil

  • 6 cups baby spinach (5 ounces)

  • 1 tablespoon butter

  • 1 clove garlic, minced

  • 1 tablespoon finely chopped seeded red jalapeño pepper

  • ¼ cup grated Parmesan cheese

  • 2 tablespoons panko breadcrumbs, preferably whole-wheat

  • teaspoon ground pepper

  • Lemon wedges for serving


  1. Preheat oven to 425 degrees F. Line a baking sheet with rock salt or balls of foil to cradle the oysters.

  2. To shuck oysters, place flat-side up and grip with a towel or gloved hand, leaving the hinged end exposed. Push the tip of an oyster knife between the top and bottom shells just adjacent to the hinge. Twist the knife until the top shell releases. (Keep the oyster level so the briny liquor stays inside the bottom shell.) Gently slide the knife along the inside of the upper shell, disconnecting the oyster from the shell; discard the top shells. Arrange the shucked oysters in their bottom shells on the prepared pan.

  3. Heat oil in a large skillet over medium-high heat. Add spinach and cook until wilted, about 1 minute. Transfer to a colander and press to remove excess water, then transfer to a clean cutting board and finely chop.

  4. Add butter and garlic to the pan. Cook over medium heat, stirring, until soft and fragrant, about 30 seconds. Add the spinach and jalapeño; stir to coat. Remove from heat.

  5. Combine Parmesan, panko and ground pepper in a small bowl. Spread a heaping teaspoon of the spinach mixture over each oyster. Sprinkle with about 1 teaspoon of the Parmesan mixture.

  6. Bake until the oysters are cooked and the tops are golden brown, 10 to 12 minutes. If desired, turn on the broiler for the last 2 minutes to brown the tops. Serve with lemon wedges.


Equipment: Rock salt or foil, oyster knife

Nutrition Facts (per serving)

122 Calories
8g Fat
7g Carbs
5g Protein
Nutrition Facts
Servings Per Recipe 4
Serving Size 3 oysters
Calories 122
% Daily Value *
Total Carbohydrate 7g 2%
Dietary Fiber 1g 4%
Total Sugars 0g
Protein 5g 10%
Total Fat 8g 11%
Saturated Fat 3g 16%
Cholesterol 22mg 7%
Vitamin A 2457IU 49%
Vitamin C 14mg 15%
Folate 8mcg 2%
Sodium 197mg 9%
Calcium 97mg 7%
Iron 4mg 20%
Magnesium 41mg 10%
Potassium 68mg 1%

Nutrition information is calculated by a registered dietitian using an ingredient database but should be considered an estimate.

* Daily Values (DVs) are the recommended amounts of nutrients to consume each day. Percent Daily Value (%DV) found on nutrition labels tells you how much a serving of a particular food or recipe contributes to each of those total recommended amounts. Per the Food and Drug Administration (FDA), the daily value is based on a standard 2,000 calorie diet. Depending on your calorie needs or if you have a health condition, you may need more or less of particular nutrients. (For example, it’s recommended that people following a heart-healthy diet eat less sodium on a daily basis compared to those following a standard diet.)

(-) Information is not currently available for this nutrient. If you are following a special diet for medical reasons, be sure to consult with your primary care provider or a registered dietitian to better understand your personal nutrition needs.

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