Spicy Tuna Melt Sandwich

Featured in: Everyday Meal Picks

This Spicy Tuna Melt combines drained canned tuna with sriracha, Dijon mustard, and fresh vegetables for a flavorful filling. Layer the spiced tuna mixture with shredded cheddar cheese between buttered sourdough slices, then pan-fry until golden and the cheese melts. The result is a crispy exterior with a warm, savory interior. Total preparation and cooking time is just 20 minutes, making it perfect for quick lunches or light dinners.

Updated on Sun, 18 Jan 2026 09:59:00 GMT
Golden-brown sourdough bread, melted cheddar cheese, and a zesty spicy tuna melt sandwich served hot on a plate. Pin It
Golden-brown sourdough bread, melted cheddar cheese, and a zesty spicy tuna melt sandwich served hot on a plate. | asiremfoods.com

My neighbor knocked on the door one afternoon holding a jar of homemade hot sauce and a confession: she'd ruined her lunch trying to use it. I invited her in, opened a can of tuna, and we threw together what became this spicy tuna melt. The smell of toasted sourdough and melting cheddar filled the kitchen while we laughed about kitchen disasters. That sandwich turned into our go-to whenever one of us needed a quick pick-me-up.

I started making these for my kids on rainy Saturdays when nobody wanted to leave the house. The kitchen would get warm and steamy, and they'd hover by the stove waiting for the cheese to bubble. One of them always asked for extra sriracha, the other wanted plain, so I learned to customize each sandwich. It became our small ritual, turning a gray afternoon into something cozy.

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Ingredients

  • Tuna in water: Draining it well is key so your salad doesn't get watery and soak the bread.
  • Mayonnaise: This binds everything together and keeps the tuna creamy, not dry.
  • Sriracha or hot sauce: Start with less if you're cautious, you can always add more but you can't take it back.
  • Dijon mustard: Adds a sharp tang that balances the richness of the mayo and cheese.
  • Celery: Gives a satisfying crunch and freshness in every bite.
  • Red onion: A little sharpness goes a long way, so chop it fine.
  • Fresh parsley: Optional but it brightens the whole mix with a hint of green.
  • Sourdough bread: The slight sour flavor and sturdy texture hold up perfectly to the tuna and melting cheese.
  • Butter: Softened butter spreads easier and gives you that golden, crispy exterior.
  • Cheddar cheese: Melts beautifully, or swap in pepper jack if you want another layer of heat.
  • Tomato: Adds juiciness and a pop of color, though I skip it when tomatoes aren't in season.

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Instructions

Mix the spicy tuna salad:
Combine the drained tuna, mayo, sriracha, mustard, celery, onion, parsley, salt, and pepper in a bowl. Stir until everything is evenly coated and the tuna breaks up into small, saucy flakes.
Prep the bread:
Lay out all eight slices and spread softened butter on one side of each. The buttered side will face out when you assemble, giving you that crispy golden crust.
Assemble the sandwiches:
Flip four slices so the unbuttered side is up, then divide the tuna salad evenly among them. Top with shredded cheese and tomato slices if you're using them, then close with the remaining bread, buttered side out.
Cook until golden:
Heat a nonstick skillet or griddle over medium heat and place the sandwiches in. Cook for 3 to 4 minutes per side, pressing gently with a spatula, until the bread turns golden brown and the cheese melts into gooey perfection.
Slice and serve:
Cut each sandwich in half while it's still hot. Serve immediately so the cheese stays stretchy and the bread stays crisp.
Close-up of a spicy tuna melt on toasted sourdough with fresh celery, red onion, and melted cheese oozing. Pin It
Close-up of a spicy tuna melt on toasted sourdough with fresh celery, red onion, and melted cheese oozing. | asiremfoods.com

One evening I made these for a friend who'd just moved into town and didn't have much in her kitchen yet. We sat on her empty living room floor with paper plates, and she said it tasted like home even though she'd never had this sandwich before. That's when I realized comfort food isn't about nostalgia, it's about warmth and being fed by someone who cares.

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Choosing Your Heat Level

I've learned that everyone has a different threshold for spice. Start with one tablespoon of sriracha and taste the tuna salad before you assemble the sandwiches. If you want more kick, stir in another half tablespoon or toss in some diced jalapeños. Pepper jack cheese also amps up the heat without changing the tuna mixture.

Bread and Cheese Swaps

Sourdough is my favorite because it gets beautifully crisp and has a slight tang, but whole wheat adds nuttiness and rye brings a bolder flavor. As for cheese, cheddar melts smoothly and tastes mild, Swiss adds a creamy richness, and pepper jack gives you that spicy edge. I've even used a mix of cheddar and mozzarella when I wanted extra stretch.

Serving and Storing

These sandwiches are best eaten right away while the cheese is still melty and the bread is crisp. If you have leftover tuna salad, store it in an airtight container in the fridge for up to two days and make fresh sandwiches as you need them. I like serving these with dill pickles, a handful of kettle chips, or a simple green salad dressed with lemon and olive oil.

  • Reheat assembled sandwiches in a skillet, not the microwave, so the bread stays crunchy.
  • Pack the tuna salad separately if you're taking this to work and assemble it fresh.
  • Double the tuna mixture if you're feeding a crowd, it goes fast.
Hearty spicy tuna melt sandwich, sliced in half to reveal the gooey cheddar and flavorful tuna salad filling. Pin It
Hearty spicy tuna melt sandwich, sliced in half to reveal the gooey cheddar and flavorful tuna salad filling. | asiremfoods.com

This spicy tuna melt has saved me on busy weeknights and impressed guests who thought I'd spent way more time in the kitchen. It's proof that simple ingredients and a little heat can turn into something you'll crave again and again.

Recipe FAQs

Can I use fresh tuna instead of canned?

Yes, cooked fresh tuna works well. Use about 12 ounces of flaked cooked tuna. The cooking method and ingredient proportions remain the same.

What cheese pairs best with this sandwich?

Cheddar is classic, but pepper jack adds extra heat and spice. Provolone or Swiss also complement the tuna nicely with their mild, nutty flavors.

How do I prevent the bread from getting soggy?

Butter the outside of the bread slices generously and cook on medium heat until golden. The tuna mixture has moisture, so avoid adding extra wet ingredients like excess mayo.

Can I make the tuna salad ahead of time?

Absolutely. Prepare the tuna mixture up to 4 hours ahead and refrigerate. Assemble and cook the sandwiches fresh when ready to serve for best results.

What sides pair well with this sandwich?

Crisp pickles, potato chips, or a fresh green salad complement the rich sandwich. Tomato soup is also an excellent pairing for a classic combination.

How spicy is this sandwich?

The heat level is mild to moderate with one tablespoon of sriracha. Adjust the sriracha amount to your preference, or add sliced jalapeños for extra kick.

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Spicy Tuna Melt Sandwich

Zesty spicy tuna salad with melted cheddar cheese on toasted sourdough bread. A quick, satisfying comfort food.

Prep Time
10 min
Cook Time
10 min
Total Duration
20 min
Created by Pauline Rosen


Skill Level Easy

Cuisine American

Makes 4 Portions

Diet Information 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 It

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

Butter Bread: Lay out all sourdough bread slices and spread softened butter on one side of each slice.

Step 03

Build 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

Close Sandwiches: Cover each sandwich with remaining bread slices, positioning buttered side facing outward.

Step 05

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

Step 06

Serve: Slice each sandwich in half and serve immediately while hot.

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Tools Needed

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

Allergy Info

Double-check your ingredients for allergens and speak with a healthcare pro if you've got concerns.
  • Contains fish (tuna)
  • Contains eggs (mayonnaise)
  • Contains wheat (bread)
  • Contains milk (cheese and butter)

Nutrition (per serving)

Use this as a reference—don’t forget, it's not medical advice.
  • Calories: 420
  • Fats: 23 g
  • Carbohydrates: 32 g
  • Proteins: 27 g

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