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Baked Old Bay Scallop & Shrimp Gratins

Baked Old Bay Scallop & Shrimp Gratins

with Cheesy Breadcrumb Topping & Lemon Dijon Salad
Sara Heilman
Sara HeilmanUpdated on March 02, 2026
Get Free Steak + 10 Free Meals
Calories
860 kcal
Protein
48g protein
Total
55 minutes
Difficulty
Hard
Allergens:
  • Wheat
  • Milk
  • Shellfish
Produced in a facility that processes eggs, milk, fish, peanuts, sesame, shellfish, soy, tree nuts, and wheat.
Serving amount

3 ounce

Carrot

10 ounce

Seasoned Precooked Potato Slices

½ cup

Panko Breadcrumbs

(Contains: Wheat)

1 unit

Onion

½ cup

White Cheddar Cheese

(Contains: Milk)

4 ounce

Cream Sauce Base

(Contains: Milk)

1 unit

Lemon

10 ounce

Shrimp

(Contains: Shellfish)

5 teaspoon

White Wine Vinegar

4 ounce

Mixed Greens

1 tablespoon

Old Bay Seasoning

8 ounce

Scallops

(Contains: Shellfish)

1 ounce

Cheese Roux Concentrate

(Contains: Milk)

¼ ounce

Parsley

2 teaspoon

Dijon Mustard

2.5 ounce

Celery

Not included in your delivery

2.5 tablespoon (tbsp)

Olive Oil

1 teaspoon (tsp)

Butter

(Contains: Milk)

teaspoon (tsp)

Salt

teaspoon (tsp)

Black Pepper

½ teaspoon (tsp)

Sugar

/ per serving
Calories860 kcal
Fat45 g
Saturated Fat18 g
Carbohydrate62 g
Sugar13 g
Dietary Fiber7 g
Protein48 g
Cholesterol325 mg
Sodium3490 mg
Trans Fat1 g
Potassium1560 mg
Calcium400 mg
Iron5 mg
Due to the different suppliers we purchase our products from, nutritional facts per meal can vary from the website to what is received in the delivered box, depending on your region.
Peeler
Small Bowl
Medium Pot
Strainer
Paper Towel
Large Bowl
Whisk
Baking Sheet
Large Pan

Cooking Steps

1
  • Adjust rack to middle position and preheat oven to 400 degrees. Bring a medium pot (large pot for 4 servings) of salted water to a boil. Wash and dry produce.

  • Trim, peel, and halve carrot lengthwise; cut crosswise into ¼-inch pieces. (TIP: If your carrot is on the larger side, quarter lengthwise before cutting crosswise.) Halve, peel, and dice onion into ¼-inch pieces. Slice celery into ¼-inch pieces. Pick parsley leaves from stems. Finely chop stems; roughly chop leaves. Quarter lemon.

  • Drain potatoes; pat dry with paper towels.

  • In a small bowl, combine panko, cheddar, ½ tsp Old Bay Seasoning (1 tsp for 4), and a large drizzle of olive oil.

2
  • Heat a drizzle of olive oil in a large pan over medium-high heat. Add carrot, onion, celery, and parsley stems. Cook, stirring occasionally, until beginning to soften, 4-5 minutes.

  • Add remaining Old Bay Seasoning; cook, stirring, until fragrant, 30 seconds. Stir in vinegar; cook until mostly evaporated, 30-60 seconds. Add cream sauce base; cook, stirring, until sauce has thickened, 10-20 seconds. Add cheese roux concentrate; cook, stirring, until sauce has thickened, 10-20 seconds more.

  • Turn off heat; set aside.

3
  • Open and drain scallops*; remove and discard any small, tough pieces attached to scallops. Rinse scallops and shrimp* under cold water and pat dry with paper towels.

  • Once water is boiling, carefully add scallops and shrimp to pot. Cook until cooked through, 1 minute, then immediately drain and rinse under cold water to stop the cooking process. Shake off any excess water.

4
  • Add scallops, shrimp, and half the potatoes to pan with sauce. Gently stir to evenly coat. TIP: Depending on the size of your pan, you may need to transfer the sauce, seafood, and potatoes to a large bowl and toss to combine.

  • Lightly coat the insides of two small oven-safe bowls or ramekins (four for 4 servings) with butter.

  • Divide seafood mixture between prepared bowls. Arrange remaining potatoes on top. Top with panko mixture in an even layer.

5
  • Transfer gratins to a baking sheet. Bake on middle rack until panko mixture is lightly browned and sauce is slightly bubbly, 15-18 minutes.

  • Carefully remove from oven; let rest for 5-10 minutes before serving.

6
  • While gratins bake, in a large bowl, whisk together mustard, half the parsley leaves, juice from one lemon wedge1½ TBSP olive oil, ½ tsp sugarsalt, and pepper (juice from two lemon wedges, 3 TBSP olive oil, and 1 tsp sugar for 4 servings).
  • Once gratins have rested and are ready to serve, add mixed greens to bowl with dressing; toss to combine. Season to taste with more lemon juice if desired.
Serve
7
  • Carefully place gratins on plates. Garnish with remaining parsley leaves. Serve salad alongside gratins and any remaining lemon wedges on the side.