Spicy Tuna Melt Sandwich

Featured in: Weekend Rosewood-Style Baking

This classic comfort sandwich combines seasoned tuna salad with a spicy kick, gooey melted cheese, and toasted sourdough bread for a delicious meal in just 20 minutes. Mix drained tuna with mayo, sriracha, Dijon mustard, crisp celery, and red onion, then layer onto buttered bread with cheese. Pan-fry until golden and melted for the perfect crispy exterior and warm, melty interior.

Updated on Sun, 18 Jan 2026 09:44:00 GMT
Golden-brown grilled Spicy Tuna Melt sandwich sliced in half on a rustic plate, showing gooey melted cheddar and zesty tuna salad. Save
Golden-brown grilled Spicy Tuna Melt sandwich sliced in half on a rustic plate, showing gooey melted cheddar and zesty tuna salad. | rosewoodcrumb.com

There was this Tuesday afternoon when I had nothing but leftover tuna and a hankering for something melty and warm. I tossed in some sriracha without measuring, slapped it between sourdough, and griddled it until the edges got crispy. The cheese bubbled through the bread, the tuna turned creamy and sharp, and suddenly lunch felt like a small victory. It became my go-to whenever I needed comfort without much fuss.

I made these for my sister one rainy Saturday when she showed up unannounced. She took one bite, declared it better than any diner melt she'd ever had, and asked me to write it down. We ended up eating all four sandwiches between us, standing at the counter with napkins bunched in our hands. That kind of easy, messy satisfaction is what keeps this recipe in rotation.

Ingredients

  • Canned tuna in water: Drain it well so the salad doesn't turn soupy, and flake it gently with a fork for even texture.
  • Mayonnaise: This binds everything together and adds creaminess that balances the heat.
  • Sriracha or hot sauce: Start with one tablespoon and taste before adding more, it sneaks up on you.
  • Dijon mustard: A little tang here sharpens the whole salad and keeps it from feeling too rich.
  • Celery: Chop it fine so you get little bursts of crunch without chunky bits falling out.
  • Red onion: The sharpness mellows as it sits in the salad, adding a subtle bite.
  • Fresh parsley: Optional, but it brightens the mix and makes it feel less heavy.
  • Sourdough bread: The tangy crust toasts beautifully and holds up to the moisture without getting soggy.
  • Unsalted butter: Softened butter spreads easily and gives you that golden, crispy exterior.
  • Shredded cheddar cheese: Melts smooth and sharp, or swap for pepper jack if you want extra fire.
  • Tomato: Thin slices add juiciness and a fresh contrast to the richness.

Instructions

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Mix the spicy tuna salad:
Combine drained tuna, mayonnaise, sriracha, Dijon, celery, red onion, parsley, salt, and pepper in a bowl. Stir until everything is evenly coated and the tuna breaks into tender flakes.
Prep the bread:
Lay out all eight slices and spread softened butter on one side of each. Flip four slices so the unbuttered side faces up.
Assemble the sandwiches:
Divide the tuna salad evenly among the four unbuttered sides. Layer shredded cheese and tomato slices on top, then close with the remaining bread, buttered side out.
Griddle until golden:
Heat a nonstick skillet over medium heat and place sandwiches in the pan. Cook for three to four minutes per side, pressing gently with a spatula, until the bread is crisp and the cheese melts into gooey pockets.
Slice and serve:
Cut each sandwich in half and serve immediately while the cheese is still stretchy. Pair with pickles or a simple green salad if you want something crisp on the side.
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Dries dishes, utensils, and cookware neatly after cooking, keeping your countertop organized and clutter free.
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A fully assembled Spicy Tuna Melt sandwich with toasted sourdough bread, melted cheese, and fresh tomato slices on a wooden cutting board. Save
A fully assembled Spicy Tuna Melt sandwich with toasted sourdough bread, melted cheese, and fresh tomato slices on a wooden cutting board. | rosewoodcrumb.com

One evening I made these for a friend who swore she hated canned tuna. She finished hers before I finished mine, then admitted the spice and the melt changed everything. Sometimes all it takes is a little heat and some good bread to turn skeptics into believers.

Customizing Your Melt

If you like extra heat, tuck sliced jalapeños into the tuna salad or swap cheddar for pepper jack. Whole wheat or rye bread works beautifully if you want a heartier base. You can even add a handful of baby spinach or arugula for a peppery green crunch that cuts through the richness.

Serving Suggestions

These sandwiches shine alongside crisp dill pickles, a handful of kettle chips, or a simple cucumber salad dressed with vinegar and dill. If you want something lighter, serve with a green salad tossed in lemon vinaigrette. The acidity balances the creamy, spicy filling and makes the whole meal feel more complete.

Storage and Reheating

The tuna salad keeps in the fridge for up to two days, so you can prep it ahead and assemble sandwiches as needed. Leftover cooked melts reheat best in a hot skillet rather than the microwave, which keeps the bread crispy and the cheese gooey. Wrap any extras tightly in foil if you plan to pack them for lunch.

  • Store unmixed tuna salad separately from assembled sandwiches to avoid sogginess.
  • Reheat in a covered skillet over low heat for even warming.
  • Press gently with a spatula while reheating to revive the crispy exterior.
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Close-up of a warm Spicy Tuna Melt sandwich, highlighting the spicy tuna salad, melted cheese, and crispy buttery sourdough crust. Save
Close-up of a warm Spicy Tuna Melt sandwich, highlighting the spicy tuna salad, melted cheese, and crispy buttery sourdough crust. | rosewoodcrumb.com

This sandwich has become my answer to lazy weeknights and surprise guests alike. It proves that comfort food doesn't need to be complicated, just honest and a little bit spicy.

Recipe FAQs

Can I make the tuna salad ahead of time?

Yes, prepare the tuna salad mixture up to 24 hours in advance and store it in an airtight container in the refrigerator. Assemble and cook the sandwiches just before serving for the best texture.

How do I adjust the spice level?

Start with 1 tablespoon of sriracha and add more to taste. For extra heat, incorporate sliced jalapeños into the salad or use pepper jack cheese instead of cheddar.

What bread alternatives work well?

Whole wheat, rye, or ciabatta bread are excellent substitutes for sourdough. Choose any sturdy bread that can hold up to butter and grilling without falling apart.

Can I add vegetables to the sandwich?

Absolutely. Tomato slices, lettuce, cucumber, or avocado add freshness and nutrition. Layer them between the tuna salad and cheese before closing the sandwich.

What's the best way to cook these without burning the bread?

Use medium heat and cook 3-4 minutes per side, pressing gently with a spatula. Medium-low heat works better if your pan runs hot. This allows the cheese to melt while the bread toasts evenly.

What sides pair well with this sandwich?

Serve with dill pickles, potato chips, or a crisp green salad. Coleslaw or roasted vegetables complement the richness of the melted cheese nicely.

Spicy Tuna Melt Sandwich

Zesty tuna salad with spicy kick and melted cheese on toasted sourdough. A quick, satisfying comfort sandwich.

Prep Time
10 minutes
Time to Cook
10 minutes
Total Duration
20 minutes
Recipe by Miles Porter


Skill Level Easy

Cuisine American

Makes 4 Number of Servings

Diet Preferences None specified

What You Need

Spicy Tuna Salad

01 2 cans (5 oz each) tuna in water, drained
02 1/3 cup mayonnaise
03 1 tablespoon sriracha or hot sauce
04 1 tablespoon Dijon mustard
05 1 celery stalk, finely chopped
06 1 small red onion, finely chopped
07 1 tablespoon chopped fresh parsley
08 Salt and black pepper to taste

Sandwich Assembly

01 8 slices sourdough bread
02 2 tablespoons unsalted butter, softened
03 1 cup shredded cheddar cheese
04 1 medium tomato, thinly sliced

How To Make It

Step 01

Prepare Tuna Mixture: Combine drained tuna, mayonnaise, sriracha, Dijon mustard, celery, red onion, parsley, salt, and black pepper in a mixing bowl. Mix thoroughly until evenly incorporated.

Step 02

Butter Bread: Lay out sourdough bread slices and butter one side of each slice evenly.

Step 03

Build Sandwiches: Flip 4 slices buttered side down. Divide spicy tuna salad evenly among them. Top each with shredded cheese and tomato slices.

Step 04

Close Sandwiches: Place remaining bread slices on top with buttered side facing outward to enclose filling completely.

Step 05

Toast Sandwiches: Heat large nonstick skillet over medium heat. Place sandwiches in skillet and cook 3 to 4 minutes per side, pressing gently, until bread is golden brown and cheese is melted.

Step 06

Serve: Transfer sandwiches to cutting board, slice diagonally in half, and serve immediately while hot.

Tools Needed

  • Mixing bowl
  • Spoon or spatula
  • Knife and cutting board
  • Large nonstick skillet or griddle
  • Spatula

Allergy Details

Go through every item to spot any allergens. Not sure? Check with your health expert.
  • Contains fish (tuna)
  • Contains eggs (mayonnaise)
  • Contains wheat (bread)
  • Contains milk (cheese and butter)

Nutrition Info (per serving)

For reference only. Always check with your doctor for health advice.
  • Caloric Value: 420
  • Fats: 23 g
  • Carbohydrates: 32 g
  • Proteins: 27 g