Cheesy Jalapeño Tuna Sandwich

Featured in Ocean-Fresh Seafood Made Simple.

Turn plain tuna into a delightful sandwich by mixing it with jalapeño slices and spices, then piling on cheddar and broiling. Hearty and protein-rich!

A chef holding a plate of food.
Updated on Fri, 04 Apr 2025 00:10:37 GMT
A close-up of a toasted sandwich filled with shredded tuna mixed with jalapeños and gooey cheddar cheese, topped with slices of fresh green onion. Pin it
A close-up of a toasted sandwich filled with shredded tuna mixed with jalapeños and gooey cheddar cheese, topped with slices of fresh green onion. | linacooks.com

I whipped up this Fiery Jalapeño Cheddar Tuna Melt in my home when I was longing for something with a bit of heat. The mix of tender tuna, tangy jalapeños and oozy sharp cheddar makes total comfort food with a spicy edge. It's now my go-to quick bite when I need something tasty that's ready in no time.

Simple Mealtime Wonder

What makes this sandwich amazing is how it turns basic items into something extraordinary. A handful of kitchen staples combined with crisp jalapeños and quality cheese build flavor layers that'll wow your taste buds. I adore how flexible it is - works great for a fast lunch or simple dinner and always hits the spot.

Round Up Your Supplies

  • Hot Sauce: Pick whatever brand you love to control the spiciness.
  • Jalapeño and Green Onion: Go with fresh ones for the perfect zing and snap.
  • Bread: Thick-cut slices really step things up.
  • Cheese: I usually grab sharp cheddar but you can switch it up.
  • Tuna: I don't mind paying more for yellowfin in olive oil - the taste is totally worth it.
  • Mayo and Yogurt: These two create the creamiest base ever.
  • Mustard: Chunky Dijon brings awesome zestiness.
Two slices of toasted bread topped with shredded chicken, melted cheddar cheese, sliced jalapeños, and chopped green onions, placed on a white plate. Pin it
Two slices of toasted bread topped with shredded chicken, melted cheddar cheese, sliced jalapeños, and chopped green onions, placed on a white plate. | linacooks.com

Time to Cook

Watch The Magic
Stick them under the broiler just till that cheese gets all bubbly and tempting.
Mix Your Filling
Stir your drained tuna with all those creamy zesty spicy bits until everything's nicely mixed.
Toast With Care
Get your bread golden brown so it can handle all that yummy stuff.
Build Your Melts
Layer that tasty tuna mix thickly then pile on the cheese.

Put Your Spin On It

I enjoy trying different cheeses sometimes going for smooth Havarti or fiery Habanero Cheddar. When I want something gentler I'll leave out the hot sauce or toss in extra jalapeños for more kick. I might add some spinach or grated carrots for extra crunch and brightness. You can even swap tuna for salmon or mashed chickpeas.

Insider Tips

Make sure you drain that tuna super well nobody wants a mushy sandwich. Always toast your bread first it really changes the texture. Keep an eye on it under the broiler those final seconds matter a lot. I never use pre-shredded cheese freshly grated stuff melts so much better.

Great Side Dishes

These melts taste awesome with a hot bowl of tomato soup or fresh green salad on the side. We'll sometimes add a handful of chips for extra crunch or some fruit for sweetness. It's hearty food that's fancy enough for dinner yet quick enough for lunch.

Two slices of toasted bread topped with shredded chicken, melted cheddar cheese, fresh green jalapeño slices, and chopped green onions. Pin it
Two slices of toasted bread topped with shredded chicken, melted cheddar cheese, fresh green jalapeño slices, and chopped green onions. | linacooks.com

Frequently Asked Questions

→ What bread holds up nicely?
Thick-sliced bread like sourdough or artisan loaves works well, as it won't fall apart under the weight of the tuna mix and melted cheese.
→ How do I make it milder?
Reduce or leave out the jalapeños, and ditch the hot sauce. You can also use mild green chiles instead to still keep some flavor.
→ What goes great with this?
Pair it up with some tomato soup, crunchy chips, or a fresh green salad. Perfect as a one-person lunch or split for sharing with a side.
→ Why olive oil tuna?
Oil-packed tuna has a richer taste and stays moist, making it a better base for a tasty sandwich compared to water-packed tuna.
→ Can I prep it ahead of time?
Yes, make the tuna mixture up to a couple of days ahead. Keep it chilled and assemble the sandwich fresh before eating.

Conclusion

A cheesy and spicy tuna sandwich brought together by sharp cheddar, jalapeños, and toasted bread. Made in minutes, it's a quick and flavorful meal.

Jalapeño Cheddar Tuna

A toasted sandwich stuffed with creamy tuna, jalapeño spice, and gooey cheddar. Takes just 15 minutes to prepare and serve.

Prep Time
10 Minutes
Cook Time
5 Minutes
Total Time
15 Minutes
By: Paolina

Category: Seafood

Difficulty: Easy

Cuisine: American

Yield: 1 Servings (2 sandwiches)

Dietary: ~

Ingredients

01 5 oz of drained yellowfin tuna.
02 2 tbsp mayonnaise.
03 1 tsp hot sauce, add more if you'd like.
04 1 tbsp plain yogurt.
05 2 tbsp finely chopped green onion.
06 1 tsp whole-grain Dijon mustard.
07 Salt and pepper, as needed.
08 2 thick slices of good bread.
09 2 slices of sharp cheddar cheese.
10 Fresh jalapeño slices for a bit of heat.
11 2 tbsp diced jalapeño for mixing.

Instructions

Step 01

In a bowl, stir together the tuna, onions, diced jalapeño, mayo, yogurt, mustard, hot sauce, and a pinch of salt and pepper.

Step 02

Lightly toast the bread slices till golden.

Step 03

Layer the tuna mix on one slice of toast, add cheese and some jalapeño slices on top.

Step 04

Heat under the broiler for about 2 minutes till the cheese gets all melty.

Notes

  1. Tuna stored in oil gives a richer taste.
  2. This recipe can serve two if paired with sides.
  3. Want it spicier? Add more jalapeños to tweak the heat.

Tools You'll Need

  • A bowl for mixing.
  • Use a broiler or toaster.

Allergy Information

Please check ingredients for potential allergens and consult a health professional if in doubt.
  • Contains fish.
  • Includes dairy.
  • Eggs in the mayo.
  • Has wheat.

Nutrition Facts (Per Serving)

It is important to consider this information as approximate and not to use it as definitive health advice.
  • Calories: 555
  • Total Fat: 28 g
  • Total Carbohydrate: 41 g
  • Protein: 40 g