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This Cheesy Crab Melt is the perfect combination of a seafood sandwich recipe and a classic grilled cheese. Tender crab meat is mixed with creamy mayonnaise, Dijon mustard, green onion, and Old Bay seasoning, then layered with Gruyere and Cheddar cheese between slices of buttery sourdough bread.

Stacked halves of Cheesy Crab Melt sandwiches on a wooden cutting board

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If you’re looking for an easy seafood lunch, quick dinner recipe, or comforting crab melt sandwich, this recipe checks all the boxes. The crispy golden bread, creamy crab filling, and gooey melted cheese make this seafood grilled cheese a meal you’ll want to make again and again.

Whether you’re using fresh crab, canned crab, or imitation crab, this easy Cheesy Crab Melt comes together in less than 20 minutes and delivers restaurant-quality flavor right at home.

Table of Contents

❤️ Why You’ll Love This Recipe

  • Ready in less than 20 minutes
  • Crispy, buttery sourdough bread
  • Creamy crab filling packed with flavor
  • Uses simple pantry-friendly ingredients
  • Great for lunch, dinner, or weekend brunch
  • Works with fresh, canned, or imitation crab
  • A delicious twist on a traditional grilled cheese sandwich
  • Perfect comfort food for seafood lovers

Why Trust This Recipe

As a home cook, I’m always looking for easy recipes that deliver big flavor without requiring complicated techniques. This Cheesy Crab Melt combines simple ingredients with classic seafood flavors to create a quick and satisfying meal. The combination of Gruyere, Cheddar, and seasoned crab creates the perfect balance of creamy, savory, and cheesy in every bite.

What Is a Cheesy Crab Melt?

A crab melt sandwich is a hot seafood sandwich made with seasoned crab meat and melted cheese, layered between slices of bread, then cooked until golden brown and crispy.

Much like a tuna melt, a Cheesy Crab Melt combines a creamy seafood filling with plenty of cheese. The sandwich is then grilled until the bread becomes crisp and the filling is hot and bubbly.

The result is a rich, flavorful seafood-grilled-cheese sandwich that’s both comforting and impressive.

Key Ingredients

NOTE: This section highlights ingredients used in the recipe. Find the full printable recipe in the recipe card below.

Crab meat

Fresh lump crab meat offers the best flavor and texture, but canned crab and imitation crab work wonderfully in this recipe as well.

Gruyere cheese

Gruyere adds a rich, nutty flavor that pairs exceptionally well with seafood.

Cheddar cheese

Sharp Cheddar provides bold flavor and creates the perfect cheesy texture.

Dijon mustard

A small amount of Dijon balances the richness of the filling and adds depth of flavor.

Old Bay seasoning

This classic seafood seasoning enhances the crab without overpowering it.

Sourdough bread

A sturdy bread helps support the filling while creating a crispy, golden exterior.

Ingredients for Cheesy Crab Melt including bread, imitation crab, shredded cheeses, mayonnaise, mustard, butter, green onions, and seasoning arranged on a countertop

Ingredients & Substitutions

NOTE: This section suggests substitutions. Find the full printable recipe in the recipe card below.

  • Crab meat – Fresh lump crab, canned crab, claw meat, or imitation crab can be used.
  • Mayonnaise – Regular, light, or avocado oil mayonnaise works well.
  • Dijon mustard – Yellow mustard can be substituted.
  • Old Bay seasoning – Substitute your favorite seafood seasoning blend.
  • Green onion – Chives can be used instead.
  • Salt and pepper – Adjust according to taste.
  • Gruyere cheese – Swiss cheese is the closest substitute.
  • Cheddar cheese – Sharp, medium, or mild Cheddar all work.
  • Butter – Mayonnaise can be spread on the bread instead.
  • Sourdough bread – Texas toast, rye bread, artisan white bread, or thick sandwich bread are excellent alternatives.

Variations

  • Spicy crab melt – Add hot sauce, cayenne pepper, or diced jalapeños.
  • Garlic crab melt – Mix roasted garlic into the crab filling.
  • Swiss cheese crab melt – Replace the Gruyere with Swiss cheese for a milder flavor.
  • Open-faced crab melt – Broil the sandwich open-faced until bubbly and golden.
  • Crab melt sliders – Use small dinner rolls to create party-sized sandwiches.
Four Cheesy Crab Melt sandwich halves stacked on a wooden cutting board showing the crab filling

Tips for Best Results

  • Drain crab thoroughly before mixing the filling.
  • Use freshly shredded cheese whenever possible.
  • Cook over medium heat to prevent burning.
  • Let the sandwich rest for 1 to 2 minutes before slicing.
  • Taste the filling before assembling and adjust seasonings if needed.
  • Avoid overfilling the sandwich.
  • Use sturdy bread that can hold the filling without becoming soggy.

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FAQs

Can I use imitation crab meat?

Yes. Imitation crab is an affordable option that works very well in this recipe.

Can I use canned crab meat?

Absolutely. Be sure to drain canned crab thoroughly before mixing the filling.

What cheese works best in a crab melt sandwich?

Gruyere and Cheddar create an excellent flavor combination, but Swiss, Monterey Jack, Havarti, and provolone are also great choices.

Can I make the filling ahead of time?

Yes. The filling can be prepared up to 24 hours in advance and refrigerated until needed.

Can I make this recipe in the air fryer?

Yes. Assemble the sandwich and air fry at 375°F for 4 to 6 minutes per side, checking frequently.

How do I keep my sandwich from getting soggy?

Drain the crab thoroughly and cook over medium heat until the bread becomes golden and crisp.

What bread is best for a seafood grilled cheese?

Sourdough is ideal because it is sturdy and crisps beautifully when toasted.

What’s the difference between a crab melt and a crab sandwich?

A crab sandwich can be served hot or cold. A crab melt specifically includes melted cheese and is served hot.

Can I freeze the crab filling?

Yes. Store the filling in a freezer-safe container for up to 2 months.

Can I use fresh crab meat?

Fresh lump crab meat is an excellent choice, providing the best flavor and texture.

How to Store Leftovers

Store leftover sandwiches in an airtight container in the refrigerator for up to 2 days.

For the best texture, reheat in a skillet, air fryer, or toaster oven.

How to Make a Cheesy Crab Melt

NOTE: This section includes a step-by-step guide. Find the full printable recipe in the recipe card below.

Quick steps:

  1. Mix the crab filling.
  2. Stir in part of the cheese.
  3. Butter the bread.
  4. Layer the sandwich ingredients.
  5. Cook until golden brown on both sides.
  6. Slice and serve warm.
Imitation crab, shredded cheese, mayonnaise, mustard, green onions, and seasoning in a mixing bowl before being combined
Cheesy crab filling mixed together in a bowl with shredded cheese, imitation crab, mayonnaise, and seasonings
Slice of sourdough bread placed in a skillet for making a Cheesy Crab Melt
Shredded Gruyere cheese sprinkled onto a slice of sourdough bread in a skillet
Cheesy crab filling spread over cheese on a slice of sourdough bread in a skillet
Shredded Cheddar cheese added on top of the crab filling in a skillet
Top slice of bread spread with butter and placed over the Cheesy Crab Melt filling in a skillet
Cheesy Crab Melt sandwich cooking in a skillet until golden brown
Two golden brown Cheesy Crab Melt sandwiches on a wooden cutting board

What to Serve With a Cheesy Crab Melt Sandwich

Pair this seafood sandwich recipe with:

Make Ahead Instructions

Prepare the crab filling up to 24 hours in advance and refrigerate it in an airtight container.

When ready to serve, assemble the sandwiches and cook as directed.

If You Enjoyed This Recipe

If you loved this Cheesy Crab Melt, you’ll definitely want to try my classic Tuna Melt, which delivers the same crispy, cheesy comfort food appeal with a flavorful tuna filling.

For an easy appetizer packed with seafood flavor, my Crab Rangoon Dip combines creamy ingredients and crab in a warm, crowd-pleasing dish that’s perfect for parties and game days.

Looking for another quick seafood recipe? These Air Fryer Salmon Bites are crispy on the outside, tender on the inside, and ready in minutes.

Pair your sandwich with my Old Fashioned Potato Salad for a classic deli-style side dish made with simple ingredients and plenty of flavor.

My Homemade Coleslaw adds a cool, creamy crunch that perfectly complements the rich flavors of this seafood grilled cheese sandwich.

And if you’re serving this Cheesy Crab Melt for lunch or dinner, Easy Pasta Salad makes a simple and satisfying side that’s great for family meals, potlucks, and cookouts.

📌 Save This Recipe

Love easy seafood recipes? Save this Cheesy Crab Melt recipe for busy weeknights, quick lunches, and those times when you’re craving something warm, cheesy, and satisfying.

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Close-up of stacked Cheesy Crab Melt sandwich halves showing the cheesy crab filling
Square image of stacked Cheesy Crab Melt sandwich halves on a wooden cutting board
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Servings: 4 servings

Cheesy Crab Melt

By Jamie Sherman
Loaded with crab, Gruyere, and Cheddar, this Cheesy Crab Melt is a quick seafood sandwich recipe everyone will love.
Prep: 10 minutes
Cook: 7 minutes
Total: 17 minutes
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Equipment

Ingredients 

  • ½ cup crab meat
  • 2 tablespoons mayonnaise
  • 1 teaspoon Dijon mustard
  • ½ to 1 teaspoon Old Bay seasoning
  • 1 teaspoon finely chopped green onion
  • Salt and pepper, to taste
  • ½ cup shredded Gruyère cheese, divided
  • ½ cup shredded Cheddar cheese, divided
  • 2 to 3 tablespoons butter, softened
  • 4 slices sourdough bread, or other sturdy bread

Instructions 

  • Heat a large skillet over medium heat.
  • Combine the crab meat, mayonnaise, Dijon mustard, Old Bay seasoning, green onion, salt, and pepper in a small bowl. Taste and adjust seasonings if needed.
    ½ cup crab meat, 2 tablespoons mayonnaise, 1 teaspoon Dijon mustard, ½ to 1 teaspoon Old Bay seasoning, 1 teaspoon finely chopped green onion, Salt and pepper
  • Stir in ¼ cup Gruyère and ¼ cup Cheddar.
    ½ cup shredded Gruyère cheese, ½ cup shredded Cheddar cheese
  • Butter one side of each slice of bread.
    2 to 3 tablespoons butter, 4 slices sourdough bread
  • Place two slices of bread in the skillet, butter-side down.
  • Divide the remaining Gruyère cheese between the slices.
  • Spread the crab mixture evenly over the cheese.
  • Divide the remaining Cheddar cheese over the crab mixture.
  • Top each sandwich with a slice of bread, butter side up.
  • Cook until the bottom is golden brown.
  • Carefully flip and cook until the second side is golden brown and the cheese is melted.
  • Remove from the skillet.
  • Rest for 1 to 2 minutes, slice in half, and serve.

Notes

🥡 STORAGE

  • Store leftovers in an airtight container in the refrigerator for up to 2 days.
  • Store leftover filling separately whenever possible for the best texture.

♨️ REHEATING

  • Reheat in a skillet over medium-low heat until warmed through.
  • Use a toaster oven or air fryer to restore crispness.
  • Avoid microwaving when possible.

❄️ FREEZING

  • Freeze prepared crab filling for up to 2 months.
  • Thaw overnight in the refrigerator before using.
  • Freezing assembled sandwiches is not recommended.

💡 TIPS FOR BEST RESULTS

  • Drain crab thoroughly.
  • Use freshly shredded cheese.
  • Cook over medium heat.
  • Allow sandwiches to rest briefly before slicing.
  • Taste and adjust seasonings before assembling.

🍳 ALTERNATE COOKING METHODS

  • Use a panini press for extra crispy sandwiches.
  • Cook on a flat-top griddle.
  • Make open-faced melts under the broiler.

♻️ LEFTOVERS

  • Serve leftover filling with crackers.
  • Spoon leftover filling onto toasted baguette slices.
  • Pair leftover sandwich halves with soup or salad.

📝 NOTES

  • Fresh, canned, and imitation crab all work well.
  • Adjust the Old Bay seasoning to your preference.
  • Gruyère and Cheddar provide the best balance of flavor and meltability.
  • Sturdy bread helps prevent sogginess.

Nutrition

Serving: 0.5sandwich, Calories: 369kcal, Carbohydrates: 34g, Protein: 18g, Fat: 18g, Saturated Fat: 8g, Polyunsaturated Fat: 4g, Monounsaturated Fat: 4g, Trans Fat: 0.2g, Cholesterol: 42mg, Sodium: 776mg, Potassium: 146mg, Fiber: 2g, Sugar: 3g, Vitamin A: 345IU, Vitamin C: 2mg, Calcium: 230mg, Iron: 3mg

Nutrition information is automatically calculated, so should only be used as an approximation.

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Jamie

Jamie Sherman founded Love Bakes Good Cakes in February 2012. She is a self-taught home cook passionate about sharing easy, delicious, and family-friendly recipes. From comforting classics to irresistible desserts, I believe homemade food brings people together. Join me on my journey of creating and sharing meals that bring joy to every table!

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