How many servings does this recipe make?

This recipe makes 4 servings. You can adjust the portion size directly on this page.

What ingredients do I need for Fiesta Tuna Salad Sandwiches?

You need 12 ingredients. The key ingredients include: 6 cans (5 ounces each) white water-packed tuna, drained and flaked, 1 large red onion, chopped, 2 medium tomatoes, chopped, 2/3 cup reduced-fat mayonnaise, and more.

Is Fiesta Tuna Salad Sandwiches suitable as seafood?

Yes, Fiesta Tuna Salad Sandwiches falls under the Seafood category and is a great choice for this type of meal.

How do I store leftover Fiesta Tuna Salad Sandwiches?

Keep refrigerated in an airtight container and enjoy within 1–2 days for the best freshness. Best served cold — no reheating needed.

Fiesta Tuna Salad Sandwiches Recipe

Name: Fiesta Tuna Salad Sandwiches
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 6 cans (5 ounces each) white water-packed tuna, drained and flaked; 1 large red onion, chopped; 2 medium tomatoes, chopped; 2/3 cup reduced-fat mayonnaise; 2 jalapeno peppers, seeded and finely chopped; 1/4 cup lemon juice; 2 garlic cloves, minced; 1 teaspoon seafood seasoning; 1 teaspoon coarsely ground pepper; 2 loaves (14 ounces each) ciabatta bread, split; 3/4 pound sliced pepper Jack cheese; 12 lettuce leaves

Fresh, crisp and full of flavor — this Fiesta Tuna Salad Sandwiches is a must-try. Made with white water, red onion, tomatoes and mayonnaise. Easy step-…

This Fiesta Tuna Salad Sandwiches relies on simple, everyday ingredients such as large red onion, chopped, medium tomatoes, chopped, reduced-fat mayonnaise and lemon juice. It comes together quickly and makes 4 servings, at about 1467 kcal each. The step-by-step instructions below are written to be easy to follow, even on a busy day.

It's versatile enough for an easy weeknight dinner yet satisfying enough for guests at the weekend. Serve it with your favorite sides, and keep any leftovers for a quick meal the next day.

Updated Jun 30, 2026

Serves 4 Seafood

1467

kcal

Calories

Tips for the best results

Read through all the steps once before you start and measure out your ingredients first — it makes everything go more smoothly.
Taste as you go and adjust the seasoning before serving.
Avoid overcrowding the pan — cook in batches if needed for the best texture.
Let the dish rest for a few minutes before serving so the flavors settle.
Store leftovers in an airtight container in the fridge and enjoy within a few days.

Variations & substitutions

Feel free to swap in similar ingredients you already have on hand and adjust seasoning to taste.

No specific allergen information. Please check the ingredient list for possible allergens.

My Personal Notes

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Fiesta Tuna Salad Sandwiches

Tips for the best results

Variations & substitutions

My Personal Notes

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