Shrimp Crab Au Gratin

Prep: 15 min Cook: 25 min Serves: 6 Cuisine: American

A rich and creamy seafood casserole featuring tender shrimp, flavorful crab meat, and crunchy water chestnuts, all baked with a cheesy, buttery sauce. Perfect for a special dinner or family gathering, this dish combines comforting rice with fresh seafood and a savory blend of seasonings.

Be the first to rate this recipe

Ingredients

  • 1/3 cup sliced green onions
  • 1/4 cup butter
  • 1/2 cup flour
  • 1 teaspoon salt
  • 1/8 teaspoon pepper
  • 1 cup half and half
  • 1 cup milk
  • 2 tablespoons lemon juice
  • 6 ounces crab meat
  • 1 cup cooked shrimp
  • 1 can water chestnuts, drained and sliced
  • 3 cups cooked rice
  • 2 tablespoons pimento

Instructions

  1. Saute sliced green onions in butter until tender.
  2. Blend in flour, salt, and pepper.
  3. Add half and half and milk, cook and stir until thick and smooth.
  4. Stir in lemon juice, crab meat, cooked shrimp, sliced water chestnuts, cooked rice, and pimento.
  5. Mix in half of the cheese.
  6. Spoon mixture into a large baking dish.
  7. Sprinkle remaining cheese on top.
  8. Bake at 350°F for 25 minutes or until mixture is hot and bubbly.

Tips & Substitutions

For a creamier texture, consider using heavy cream instead of half and half. If you're looking for a lighter option, almond milk or oat milk can be substituted. Fresh crab meat is ideal, but canned will work in a pinch. For added flavor, try incorporating a dash of hot sauce or a sprinkle of Old Bay seasoning, which is common in many seafood recipes.

Serving Suggestions

Serve this Shrimp Crab Au Gratin with a light salad, such as a Vineyard Summer Salad, to balance the richness. A side of garlic bread or steamed vegetables complements the dish well. For an elegant touch, garnish with fresh parsley or lemon wedges before serving.

Storage & Reheating

Store leftovers in an airtight container in the refrigerator for up to 3 days. To reheat, cover with foil and warm in a 350°F oven until heated through, about 15-20 minutes. Alternatively, you can microwave individual portions for quick meals, being careful not to overheat.

Nutrition & Diet Analysis (per serving)

Each serving of Shrimp Crab Au Gratin contains roughly 1570 calories, with 22g protein, 86g carbohydrates, and 126g fat. It is an excellent source of protein (43% of the Daily Value), iron (29% of the Daily Value), and vitamin C (26% of the Daily Value), and a good source of calcium and vitamin A. Note that it is relatively high in sodium, at 2128mg per serving (93% of the Daily Value).

1570 kcal 78% DV
Protein Fat Carbs

Macronutrients

Protein 21.7g 43% DV
Total Fat 126.1g 100% DV
Carbs 86.1g 31% DV
Fiber 2.7g 10% DV
Sugar 15.2g 30% DV

Electrolytes

Sodium 2127.9mg 93% DV
Potassium 384.2mg 8% DV
Cholesterol 449.3mg 100% DV

Vitamins & Minerals

Vitamin A 120.8mcg 13% DV
Vitamin C 23.4mg 26% DV
Vitamin D 0.6mcg 3% DV
Calcium 239.7mg 18% DV
Iron 5.3mg 29% DV
Diet fit High-protein
Contains Milk Wheat/Gluten Shellfish

Estimated from ingredients & per-serving nutrition — verify against package labels for allergies or strict diets.

* % Daily Values based on a 2,000 calorie diet (FDA 2020).

Frequently Asked Questions

Can I use frozen shrimp for this recipe?

Yes, frozen shrimp can be used. Just make sure to thaw them completely and pat them dry before adding to the mixture. This will help prevent excess moisture in the dish.

What type of cheese works best for topping?

A blend of cheddar and mozzarella works wonderfully, providing both flavor and a nice melting quality. You can also experiment with other cheeses like Gruyère or Monterey Jack for a unique twist.

Can I make this dish ahead of time?

Absolutely! You can prepare the mixture a day in advance, store it in the refrigerator, and then bake it just before serving. This makes it a great option for gatherings or busy weeknights.

Nutrition is estimated from USDA FoodData Central ingredient data and may vary with brand, portion and preparation — see our methodology. This information is for general educational purposes only and is not medical or dietary advice (disclaimer).

American recipes → Seafood recipes → Dairy recipes → All recipes →