Spicy Tuna Melt Sandwich

Featured in: Oven & Skillet Basics

This spicy tuna melt combines drained canned tuna with mayonnaise, sriracha, Dijon mustard, celery, and red onion for a flavorful filling. Butter sourdough bread slices, layer the tuna mixture with shredded cheddar cheese, and grill until golden and melted. Ready in just 20 minutes, it serves 4 and works perfectly for lunch or dinner.

Updated on Sun, 18 Jan 2026 08:05:00 GMT
The golden-brown, toasted sourdough bread cradles a spicy tuna melt, with melted cheddar oozing from the edges. Save
The golden-brown, toasted sourdough bread cradles a spicy tuna melt, with melted cheddar oozing from the edges. | dailyhlib.com

My neighbor knocked on the door one rainy Tuesday holding a can of tuna and asking if I had any bread. She was craving something warm, something melted, something with a kick. We ended up in my kitchen improvising what turned into this spicy tuna melt, and by the time the cheese was bubbling and golden, we were both laughing at how such simple pantry staples could feel this indulgent. Now every time I make it, I think about that spontaneous afternoon and how good food doesnt need much planning.

I served these at a casual weekend lunch with friends who claimed they didnt like canned tuna. One bite in, they were asking for the recipe and admitting theyd been wrong all along. The combination of creamy, spicy filling and that crisp, buttery crust won them over completely. Its become my go to proof that humble ingredients, when treated right, can surprise even the skeptics.

Ingredients

  • Tuna in water: Drain it well so the salad doesnt get watery, and flake it with a fork for even texture.
  • Mayonnaise: This binds everything together and adds richness, use a good quality one for the best flavor.
  • Sriracha or hot sauce: Start with a tablespoon and taste as you go, you can always add more heat but you cant take it away.
  • Dijon mustard: It brings a tangy sharpness that balances the creaminess and plays beautifully with the tuna.
  • Celery stalk: Finely chop it for a crisp, fresh crunch that cuts through the richness.
  • Red onion: A small one is plenty, and the sharpness mellows as it sits in the salad.
  • Fresh parsley: Optional but it adds a pop of color and a hint of brightness.
  • Sourdough bread: Its sturdy enough to hold the filling and gets wonderfully crispy when toasted.
  • Unsalted butter: Softened butter spreads easily and creates that golden, crunchy exterior.
  • Cheddar cheese: Shred it yourself for better melting, or swap in pepper jack if you want to double down on the spice.
  • Tomato: Thin slices add juiciness and a fresh note, but theyre totally optional if you want to keep it simple.

Instructions

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Make the Spicy Tuna Salad:
In a mixing bowl, combine the drained tuna, mayonnaise, sriracha, Dijon mustard, celery, red onion, parsley, salt, and pepper. Mix well until everything is evenly incorporated and the tuna is nicely flaked.
Prep the Bread:
Lay out all eight slices of sourdough and butter one side of each slice generously. This buttered side will be the outside of your sandwich, so dont skimp.
Assemble the Sandwiches:
Flip four slices so the unbuttered side faces up, then divide the spicy tuna salad evenly among them. Top each with shredded cheese and tomato slices if youre using them.
Close and Cook:
Place the remaining bread slices on top, buttered side facing out. Heat a large nonstick skillet or griddle over medium heat and cook the sandwiches for three to four minutes per side, pressing gently with a spatula, until the bread is golden brown and the cheese is melted and gooey.
Serve Hot:
Slice each sandwich in half and serve immediately while the cheese is still stretchy and the bread is crisp. Pair with pickles or a simple green salad if you like.
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A close-up of a spicy tuna melt on toasted sourdough, featuring a thick layer of gooey melted cheese. Save
A close-up of a spicy tuna melt on toasted sourdough, featuring a thick layer of gooey melted cheese. | dailyhlib.com

The first time I made this for my brother, he took one bite and said it tasted like the diner sandwiches we used to share as kids, only better. We sat at the kitchen counter with paper towels in hand, cheese dripping onto our plates, and for a moment it felt like we were twelve again. Food has a way of doing that, bridging time and turning an ordinary lunch into a memory.

Choosing Your Cheese

Cheddar is classic and melts beautifully, but pepper jack adds an extra layer of heat that plays really well with the sriracha in the tuna. Ive even tried sharp white cheddar when I wanted something a little more sophisticated, and it didnt disappoint. Whatever you choose, shred it yourself from a block because pre shredded cheese has anti caking agents that can make it melt unevenly.

Bread Options

Sourdough is my favorite because of its tangy flavor and sturdy structure, but whole wheat adds a nutty note and rye brings an earthy depth. The key is to choose something that can hold up to grilling without falling apart. Avoid soft sandwich bread because it tends to get squished and soggy under the weight of the filling.

Serving Suggestions

This sandwich is hearty enough to stand on its own, but I love serving it with a handful of crispy dill pickles on the side. A simple arugula salad with lemon vinaigrette cuts through the richness beautifully, and if youre feeling indulgent, a handful of kettle cooked potato chips never hurt anyone.

  • Add sliced avocado to the sandwich for creamy richness.
  • Serve with tomato soup for a nostalgic, comforting combo.
  • Grill the sandwich in a panini press if you have one for extra crispy edges.
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A spicy tuna melt sandwich with cheddar cheese and tomato slices, served hot on a rustic wooden plate. Save
A spicy tuna melt sandwich with cheddar cheese and tomato slices, served hot on a rustic wooden plate. | dailyhlib.com

This spicy tuna melt has become my favorite way to turn pantry staples into something that feels special without any fuss. I hope it brings as much comfort and joy to your table as it has to mine.

Recipe FAQs

Can I use fresh tuna instead of canned?

Yes, you can use fresh tuna. Cook and flake about 8 ounces of fresh tuna, then cool before mixing with the other ingredients. Canned tuna is more convenient and budget-friendly for this sandwich.

How do I adjust the spice level?

Start with 1 tablespoon of sriracha and add more to taste. You can also use milder hot sauces, incorporate sliced jalapeños, or switch to pepper jack cheese for additional heat.

What cheese works best for this sandwich?

Cheddar and pepper jack are excellent choices. Pepper jack adds extra spice, while cheddar provides a classic flavor. Gruyère or Swiss cheese can also work well for a different profile.

Can I prepare the tuna salad ahead of time?

Absolutely. Make the tuna salad mixture up to 24 hours in advance and store it in an airtight container in the refrigerator. Assemble and grill the sandwiches when ready to serve.

What sides pair well with this sandwich?

Crisp green salads, pickles, and coleslaw are ideal accompaniments. Tomato soup or a light broth also complement the rich, savory flavors of the melt beautifully.

Can I make this vegetarian or vegan?

For vegetarian, substitute the tuna with mashed chickpeas or white beans mixed with the same seasonings. For vegan, use dairy-free cheese and vegan mayo instead of traditional ingredients.

Spicy Tuna Melt Sandwich

A zesty tuna salad with sriracha heat and melted cheese on toasted sourdough bread. Quick, easy, and satisfying.

Prep time
10 minutes
Time to cook
10 minutes
Total duration
20 minutes
Created by Declan OBrien


Skill level Easy

Cuisine type American

Makes 4 Number of servings

Dietary info None specified

Needed ingredients

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 fresh parsley, chopped
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: In a mixing bowl, combine drained tuna, mayonnaise, sriracha, Dijon mustard, celery, red onion, parsley, salt, and pepper. Mix thoroughly until evenly incorporated.

Step 02

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

Step 03

Layer Sandwich Fillings: Position 4 bread slices with unbuttered side facing up. Divide spicy tuna salad evenly among them. Top each with shredded cheese and tomato slices.

Step 04

Close Sandwiches: Top each filled slice with remaining bread slices, buttered side facing outward.

Step 05

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

Step 06

Serve: Slice sandwiches in half and serve immediately while hot.

Tools you'll need

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

Allergy details

Look into every ingredient for allergens and check with a doctor if you're unsure.
  • Contains fish (tuna)
  • Contains eggs (mayonnaise)
  • Contains wheat (bread)
  • Contains milk (cheese and butter)

Nutrition details (per serving)

Nutrient details are for reference and aren't a substitute for doctor's advice.
  • Calories: 420
  • Total fat: 23 grams
  • Carbohydrates: 32 grams
  • Proteins: 27 grams