Jalapeño Tuna Melt

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This Jalapeño Tuna Melt is a spicy twist on the classic and easy to make for lunch or dinner. A comforting, warm sandwich with 10 ingredients that’s a big hit with tuna salad lovers.

This Jalapeño Tuna Melt is the kind of simple upgrade that revamps a classic sandwich. It has everything you want in a comfort food meal: creamy tuna salad, plenty of melty cheese, and a spicy kick from fresh jalapeños that brings the whole thing to life. It’s cozy, satisfying, and easy enough for a quick lunch, but rich enough to make a great easy dinner too.

This recipe actually came together on a day when I was craving a tuna sandwich but wanted something warmer, cheesier, and a little more exciting. I had a rogue can of Fishwife Tuna (my favorite canned fish), and fresh jalapeños on hand and decided to fold them into the tuna mixture for some crunch and heat, then topped it all with cheese and toasted it until golden and bubbly.

If you like sandwich, you’ll love my Spicy Tuna Salad Sandwich and my Crispy Rice Spicy Tuna Sandwich.

Why You’ll Love This Recipe

Spicy twist on a classic tuna melt. This recipe adds just a touch of heat to a classic tuna melt in the best way.
It’s ready in 20 minutes. This recipe is quick, so great for whipping on for a fast weekday lunch.
It uses simple ingredients you probably already have in your pantry.
Give your can of tuna an upgrade. This is such a good way to plus up a can of tuna and turn it into something spicy and delicious.

Ingredients

Albacore Tuna. You can really use any tuna you like, but I like to use a fancier tuna, specifically the Fishwife tuna in spicy oil.
Brioche bread. I love to use a soft brioche bread for this because it griddles nicely and adds to the flavor of the sandwich.
Cheddar cheese. Using a sharp cheddar on this allows for the cheese to bubble, and to have enough flavor to hold up to the rest of the ingredients in the melt.
Red onion. Red onion adds a sharp, slightly sweet crunch that brightens the tuna melt and balances the richness while enhancing the spicy kick.
Kewpie mayo. Kewpie mayo is richer, creamier, and slightly tangier than regular mayo, adding a deeper umami flavor that makes everything taste more indulgent.
Worcestershire. Just a touch of worcestershire adds a subtle, savory umami depth and tang that enhances the tuna’s flavor and balances the richness of the mayo and melted cheese.
Whipped or softened cream cheese. I like to add a little cream cheese to my tuna melts to give them a rich, creamy texture.
Radish. Adding a radish gives the sandwich a bite and a crunch.
Jalapeño. Using chopped jalapeño to give this melt a bit of a kick is just the right level of heat.

How to make a Jalapeño Tuna Melt

1. Preheat oven to broil. Combine tuna salad ingredients into a bowl.

mixed ingredients for a jalapeno tuna melt

2. Once combined, season to taste. You might want to adjust depending on how creamy or spicy you want it to be.

3. Add shredded sharp cheddar cheese to two slices of brioche bread.

bread and cheese for a jalapeno tuna melt

4. Add to a baking sheet and broil for about 2-3 min or until cheese has melted and browned slightly. Add scoops of tuna salad to the sandwich and close.

Toasted bread with melted cheese and spicy jalapeños, ready to enjoy.

5. Melt butter in a skillet and add your melt. Cook on medium to low heat with a top until the other side of the bread is browned and cheese and tuna salad have melted together.

Expert Tips

If tuna is in water, drain well so the sandwich doesn’t get soggy. But if using a good can of tuna, reserve some of that good oil and add a tsp or so to your mixture of some added flavor. Careful to not add too much.
Use freshly shredded cheese. For optimal melting, I like to shred my cheese right before cooking.
Adjust your heat levels by keeping or removing the jalapeño seeds. If you want more heat, leave the seeds in, or if you want to reduce the heat, discard before chopping.
Feel free to include some add ons. Add a tomato, or a few slices of crisp romaine for added flavor to the melt.
Use medium heat and add a lid so the bread crisps while the cheese melts.

Variations and Mix-ins

Add crispy bacon for extra flavor. If you like a smoky flavor, bacon holds up really nicely the smokiness in the tinfish.
Swap jalapeños for pickled banana peppers or cherry peppers. This will give you heat and a pickly quality.
Use pepper jack cheese for more spice. This melt works great with most cheeses, so feel free to get creative!
Add avocado for more flavor and creaminess.
Add on toast or turn into an open-face melt. This tuna salad works great on a piece of toast or open-faced.

If you are looking for what to serve with this Jalapeño Tuna Melt, check out my soups & salads.

Storage & Make Ahead

Fridge: Store the tuna salad (without bread or cheese) in an airtight container in the fridge for up to 3 days. If already assembled, it’s best eaten fresh, but you can refrigerate leftovers and reheat in a skillet or toaster oven to bring back the crispiness.

Freezer: Freezing isn’t ideal for the fully assembled tuna melt since the mayo-based filling can separate and the bread can get soggy. However, you can freeze the tuna mixture for up to 1 month—just thaw in the fridge overnight and stir well before using.

Make Ahead: Prep the tuna salad up to 2–3 days in advance and keep it chilled. When ready to eat, assemble with fresh bread and cheese, then toast until golden and melty for the best texture and flavor.

Can I make tuna melts in the oven?

Yes—tuna melts are actually great in the oven, especially if you’re making multiple at once.
For the best results, preheat your oven to 400°F, assemble the sandwiches open-faced (bread + tuna salad + cheese), and place them on a baking sheet. Bake for about 8–10 minutes until the cheese is melted, then broil for 1–2 minutes at the end to get that bubbly, golden top. If you prefer a closed sandwich, you can bake it assembled and flip halfway through, but open-faced gives you the best melty, crispy finish.

How spicy is a jalapeño tuna melt?

A jalapeño tuna melt is usually mildly to moderately spicy, depending on how many jalapeños you use and whether you include the seeds and ribs (that’s where most of the heat lives). For a milder version, remove the seeds and use just a small amount; for more heat, keep them in or add extra slices.

What is the best cheese for tuna melts?

The best cheese for a tuna melt is one that melts smoothly and complements the creamy, savory filling without overpowering it. Classic options like cheddar (sharp or mild), Swiss, and American are favorites—cheddar adds bold flavor, Swiss brings a slightly nutty taste, and American gives you that ultra-creamy, nostalgic melt.

Can I make tuna salad ahead of time?

Yes—tuna salad is great to make ahead. Store it in an airtight container in the fridge for up to 3 days, and give it a quick stir before using since it may release a little liquid as it sits.

Can I use canned salmon instead of tuna?

Yes, you can absolutely use canned salmon instead of tuna—it works really well and gives a slightly richer, more flavorful twist. Just drain it well and remove any skin or large bones if needed, then mix and use it the same way you would tuna for a melt.

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Jalapeño Tuna Melt