Spicy Tuna Melt Sandwich

Featured in: Family-Friendly Plates

This classic Spicy Tuna Melt features seasoned tuna salad mixed with sriracha and Dijon mustard, layered with melted cheddar cheese on buttered sourdough bread. Simply combine your drained tuna with mayo, hot sauce, mustard, fresh celery, and red onion for a flavorful salad base. Butter your bread, assemble with cheese and optional tomato, then pan-fry until golden and crispy on both sides. The result is a warm, satisfying sandwich with a perfect balance of heat and creaminess. Serve hot with pickles or a fresh salad.

Updated on Sun, 18 Jan 2026 14:48:00 GMT
Golden toasted sourdough slices reveal melted cheddar cheese and spicy tuna salad, garnished with fresh parsley and thin tomato slices on a rustic wooden board.  Save to Pinterest
Golden toasted sourdough slices reveal melted cheddar cheese and spicy tuna salad, garnished with fresh parsley and thin tomato slices on a rustic wooden board. | buenocravings.com

My landlord stopped by one afternoon while I was grilling these sandwiches, and the smell pulled him straight into the kitchen. He stood there watching the cheese bubble at the edges, asked what I was making, then politely invited himself to lunch. We ended up sitting on my back steps with paper towels for napkins, and he told me it reminded him of his college days when tuna melts were the only thing he knew how to cook. Sometimes the simplest recipes unlock the best conversations.

I started making these during a particularly cold spring when I craved something warm and quick after long work calls. The first batch I assembled carelessly, overstuffing the bread and watching tuna spill onto the pan. I learned to go easy on the filling and let the cheese do the binding work. Now it's my go to whenever I need something comforting that doesn't require a trip to the store.

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Ingredients

  • Canned tuna in water: Drain it well and press gently with a fork to remove excess moisture, otherwise your bread gets soggy before it crisps.
  • Mayonnaise: This binds everything together and adds richness, but don't overdo it or the salad turns slippery.
  • Sriracha: Start with less if you're heat sensitive, you can always add more but you can't take it back once it's mixed in.
  • Dijon mustard: It adds a subtle sharpness that balances the mayo and keeps the filling from tasting flat.
  • Celery: Finely chop it so you get little bursts of crunch without big chunks that fall out when you bite.
  • Red onion: The sharpness mellows slightly when mixed with the mayo, but rinse it under cold water first if raw onion bothers you.
  • Fresh parsley: Optional, but it brightens the whole thing and makes it feel less heavy.
  • Sourdough bread: The tanginess pairs perfectly with the spicy tuna, and it holds up to grilling without falling apart.
  • Butter: Soften it first so it spreads evenly without tearing the bread, and don't skip buttering all the way to the edges.
  • Cheddar cheese: Shred it yourself if you can, pre shredded cheese has coatings that prevent it from melting as smoothly.
  • Tomato slices: Pat them dry with a towel before adding them or they'll make the sandwich watery.

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Instructions

Mix the spicy tuna salad:
Combine drained tuna, mayo, sriracha, mustard, celery, onion, parsley, salt, and pepper in a bowl, breaking up any large tuna chunks with a fork. Taste it now and adjust the heat or seasoning before you commit to building the sandwiches.
Prep the bread:
Lay out all eight slices and butter one side of each, making sure to cover the edges where the bread browns first. Flip four slices so the unbuttered side faces up, ready for the filling.
Assemble the sandwiches:
Divide the tuna salad evenly among the four slices, then top with cheese and optional tomato. Press the remaining bread slices on top with the buttered side facing out, creating a little pocket of flavor.
Grill until golden:
Heat your skillet over medium and place the sandwiches in without crowding, pressing gently with a spatula. Cook for three to four minutes per side until the bread turns deep golden and the cheese melts into the tuna, then flip carefully to avoid spilling.
Slice and serve:
Let them rest for a minute so the cheese sets slightly, then cut in half and serve while still hot. The contrast between the crispy exterior and warm gooey center is what makes this worth the wait.
Spicy tuna melt sandwich cut diagonally to show layers of gooey cheese, zesty tuna filling, and fresh tomato on buttery sourdough bread.  Save to Pinterest
Spicy tuna melt sandwich cut diagonally to show layers of gooey cheese, zesty tuna filling, and fresh tomato on buttery sourdough bread. | buenocravings.com

One evening I made a double batch for a friend who had just moved into a new apartment with no furniture and only a hot plate. We sat on her kitchen floor with these sandwiches and a bag of chips, and she said it was the first meal that made the empty place feel like home. That's when I realized comfort food isn't really about the recipe, it's about the moment you share it in.

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Choosing Your Cheese

Cheddar is my default because it melts evenly and has a sharpness that complements the tuna, but pepper jack brings extra heat if you're chasing spice. I tried Swiss once and it was too mild, disappearing into the background instead of adding anything meaningful. Gruyere works if you want something nutty and sophisticated, though it feels a bit fancy for a weeknight tuna melt.

Bread Matters More Than You Think

Sourdough holds up to the moisture and grilling without turning limp, and its slight tang plays nicely with the sriracha. I've used plain white bread in a pinch and it works, but it lacks structure and can get a little mushy. Rye adds an earthy flavor that some people love, though it can overpower the tuna if it's too strong.

Serving and Storing

These are best eaten right away while the cheese is still melty and the bread is crisp. If you need to hold them for a few minutes, keep them in a low oven on a wire rack so they don't steam and soften. Leftover tuna salad keeps in the fridge for two days, and you can assemble fresh sandwiches as needed.

  • Serve with dill pickles or a handful of kettle chips for crunch.
  • A simple green salad with lemon vinaigrette cuts through the richness nicely.
  • If reheating a leftover sandwich, use a skillet instead of the microwave to bring back the crisp.
A close-up view of a homemade spicy tuna melt, highlighting the bubbly melted cheese, vibrant red tomatoes, and golden crisp crust. Save to Pinterest
A close-up view of a homemade spicy tuna melt, highlighting the bubbly melted cheese, vibrant red tomatoes, and golden crisp crust. | buenocravings.com

There's something about a well made tuna melt that feels like a small victory, proof that you don't need complicated ingredients to make something satisfying. Keep the pantry stocked and you'll always have this one ready when you need it.

Recipe FAQs

Can I make the tuna salad ahead of time?

Yes, you can prepare the tuna salad up to 24 hours in advance. Store it in an airtight container in the refrigerator and assemble your sandwiches when ready to cook.

What can I use instead of sriracha?

Any hot sauce works well as a substitute. You can also use jalapeño peppers, cayenne pepper, or red pepper flakes to adjust the heat level to your preference.

Is there a dairy-free option?

Yes, substitute the cheddar cheese with a dairy-free alternative and use dairy-free butter. Ensure your mayonnaise is also egg-free if needed to accommodate dietary restrictions.

How do I prevent the sandwich from getting soggy?

Butter the bread generously on the outside and cook on medium heat to get a golden crust quickly. If using tomato, pat it dry first or add it sparingly to minimize moisture.

Can I use fresh tuna instead of canned?

Absolutely. Use cooked and flaked fresh tuna in place of canned. This will give you a fresher texture and flavor, though canned tuna is more convenient and economical.

What bread pairs best with this sandwich?

Sourdough provides excellent structure and tangy flavor, but whole wheat, rye, or even thick-cut white bread work wonderfully. Choose bread sturdy enough to handle the filling without falling apart.

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Spicy Tuna Melt Sandwich

A delicious comfort sandwich combining spicy tuna salad with melted cheddar cheese on toasted sourdough bread.

Prep Time
10 minutes
Cook Time
10 minutes
Overall Time
20 minutes
Created by Tessa Morrison


Skill Level Easy

Cuisine American

Makes 4 Portions

Dietary notes None specified

What You'll 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

Step 01

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

Step 02

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

Step 03

Assemble Sandwiches: Place 4 bread slices with unbuttered side facing up. Divide spicy tuna salad evenly among the slices. Top each with shredded cheese and tomato slices.

Step 04

Complete Sandwich Construction: Cover each sandwich with remaining bread slices, placing them with buttered side facing outward.

Step 05

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

Step 06

Finish and Serve: Remove sandwiches from skillet, slice in half, and serve hot.

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Equipment Needed

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

Allergy Advisory

Look at every ingredient for possible allergens, and talk to a doctor if you’re unsure.
  • Contains fish (tuna)
  • Contains eggs (mayonnaise)
  • Contains wheat (bread)
  • Contains milk (cheese and butter)

Nutrition Info (per portion)

Nutritional details are estimates and shouldn’t replace medical guidance.
  • Calorie count: 420
  • Fats: 23 g
  • Carbohydrates: 32 g
  • Proteins: 27 g

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