Crab and Whitefish Seafood Sandwich with Egg Salad

By , Test Kitchen Director · Reviewed by AislePrompt Editorial · ·

A layered seafood sandwich featuring fresh crab meat, whitefish, and a creamy egg salad on toasted rustic bread. This american-inspired sandwiches & wraps ready in about 30 minutes pairs lump crab meat, cooked whitefish, flaked, large eggs for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 420 calories and feeds 4, so it slots cleanly into a weekly meal plan and pairs well with a quick salad or grain on the side. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

Prep: 15 min Cook: 15 min Serves 4 American cuisine 420 cal/serving
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Ingredients

Instructions

  1. Step 1: Place 3 large eggs in a saucepan and cover with cold water. Bring to a boil over medium-high heat, then reduce to a simmer and cook for 10 minutes. Transfer eggs to ice water to cool, then peel and chop finely.
  2. Step 2: In a medium bowl, combine 3 tbsp mayonnaise, 1 tsp Dijon mustard, 1 tsp lemon juice, 1/4 cup finely diced celery, 2 tbsp thinly sliced green onion, 1/2 tsp salt, and 1/4 tsp black pepper. Fold in the chopped eggs gently to make the egg salad.
  3. Step 3: Mix 1/2 cup lump crab meat and 1/2 cup flaked cooked whitefish in a separate bowl, seasoning lightly with salt and pepper.
  4. Step 4: Butter one side of 8 slices of rustic sandwich bread with 2 tbsp softened butter. Toast the bread slices in a skillet over medium heat until golden brown on both sides.
  5. Step 5: To assemble sandwiches, layer a buttered slice with lettuce leaf, 1/4 of the crab and whitefish mixture, 1/4 of the egg salad, and top with another buttered bread slice. Repeat for remaining sandwiches.
  6. Step 6: Cut sandwiches diagonally and serve warm or at room temperature.

Equipment for this recipe

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Frequently asked questions

How long does Crab and Whitefish Seafood Sandwich with Egg Salad take to make?

Total time is about 30 minutes (15 min prep + 15 min cook). Most home cooks find this fits comfortably into a weeknight; double the batch on Sunday for two dinners.

How do I store leftover Crab and Whitefish Seafood Sandwich with Egg Salad?

Cool to room temperature within 2 hours, then store in an airtight container in the fridge for up to 4 days. Reheat covered in a 350°F oven for 10-12 minutes, or microwave at 70% power in 60-second bursts to keep lump crab meat from drying out.

Can I substitute ingredients in Crab and Whitefish Seafood Sandwich with Egg Salad?

Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.

How do I scale Crab and Whitefish Seafood Sandwich with Egg Salad for a different number of people?

The recipe is written for 4 servings. Multiply each ingredient by (your serving target / 4). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.

What goes well with Crab and Whitefish Seafood Sandwich with Egg Salad?

American sandwiches & wraps like this pair well with a simple grain (rice, couscous, or crusty bread), a quick salad with acid (lemon vinaigrette, pickled onions), and a pan sauce or yogurt-based dip. Tap "Plan a meal with the AI" to get specific side suggestions.