Tuna and Sweetcorn Submarine

 

Easy Tuna Sweet Corn Sub Recipe: A Fresh and Creamy Sandwich Delight

Craving a light yet satisfying sandwich that's packed with flavor and crunch? This easy tuna sweet corn sub is the perfect choice! Featuring flaky canned tuna mixed with sweet corn, creamy mayonnaise, and crisp veggies, all stuffed into a toasted sub roll, it's ready in just 10-15 minutes with no cooking required. Ideal for quick lunches, picnics, or healthy meal prep, this no-cook recipe is a healthier twist on classic tuna salads. Whether you're searching for a simple tuna sweet corn sub recipe, a tuna mayo sweetcorn sandwich like Subway's, or an egg-free tuna sub idea, this versatile option is beginner-friendly, budget-savvy, and customizable for any diet.

Popular in the UK and beyond for its simple yet delicious combo, this sub draws from everyday pantry staples and has become a go-to for busy days. Let's dive in and make it!

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Tuna mayo sweetcorn sandwich

What Is a Tuna Sweet Corn Sub?

A tuna sweet corn sub is a refreshing submarine sandwich filled with a creamy mixture of canned tuna, sweet corn kernels, mayonnaise, and optional add-ins like onions or celery for extra texture. Served on a long sub roll or hoagie bun, it's similar to a tuna salad sandwich but in a more substantial, shareable format. This no-cook version relies on drained canned ingredients for convenience, making it quick and mess-free. Often enjoyed cold, it's a staple in meal prep routines and can be made vegan with plant-based alternatives. Unlike heavier meat subs, this one is lighter, protein-packed, and naturally gluten-free adaptable—perfect for summer or on-the-go eating.

Ingredients for Easy Tuna Sweet Corn Sub

This recipe serves 4 subs and uses just a handful of affordable ingredients—most from your pantry!

• 2 cans (about 10-12 oz total) tuna in water or brine, drained and flaked
• 1 cup canned sweet corn, drained (or frozen, thawed)
• 1/2 cup mayonnaise (use full-fat for creaminess or light for healthier)
• 1 small red onion, finely diced (about 1/4 cup)
• 1-2 stalks celery, finely chopped (optional for crunch)
• 1 tbsp fresh lemon juice or vinegar for tang
• Salt and black pepper to taste
• Optional: 1 tsp Dijon mustard, chopped chives or spring onions
• 4 sub rolls or hoagie buns
• Lettuce leaves, tomato slices, or pickles for topping

Many recipes emphasize draining the tuna and corn well to avoid a watery filling.

Step-by-Step Instructions: How to Make Tuna Sweet Corn Sub

This foolproof no-cook method comes together in minutes. Prep time: 10 minutes | Assembly: 5 minutes | Chilling (optional): 30 minutes.

1. Prepare the Filling: In a medium bowl, flake the drained tuna with a fork. Add the drained sweet corn, diced onion, chopped celery (if using), mayonnaise, lemon juice, mustard (optional), salt, and pepper. Mix until well combined and creamy—don't overmix to keep some texture.
2. Taste and Adjust: Give it a quick taste; add more mayo for creaminess or lemon for brightness. If desired, stir in chopped chives for extra flavor.
3. Toast the Rolls (Optional): Slice the sub rolls lengthwise. For added crunch, lightly toast them in a skillet or toaster oven for 1-2 minutes.
4. Assemble the Subs: Line the bottom of each roll with lettuce to prevent sogginess. Spoon a generous portion of the tuna sweet corn mixture on top. Add tomato slices, pickles, or extra veggies.
5. Serve: Close the sub and enjoy immediately, or wrap in foil for later. It's even better after chilling to let flavors meld!

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How to Make Tuna & Sweetcorn Sandwich At Home | Tuna Corn Mayo Subway Sandwich | Healthy Diet Recipe

Tips for the Perfect Tuna Sweet Corn Sub

• Drain Thoroughly: Excess liquid from tuna or corn can make the filling soggy—pat dry if needed.
• Make-Ahead: Prepare the filling up to 2 days in advance; store in the fridge for easy meal prep.
• Healthier Swaps: Use Greek yogurt instead of mayo for a protein boost, or low-sodium tuna.
• Bread Choice: Opt for whole-grain subs for added nutrition; sturdy rolls hold up best.
• Spice It Up: Add a dash of hot sauce or red pepper flakes for heat.
• Common Mistakes: Avoid over-seasoning initially—taste as you go. If too dry, add a splash of tuna brine.

Variations on Tuna Sweet Corn Sub

Customize this base for fun twists:

• Veggie-Packed: Stir in diced bell peppers, carrots, or avocado for more crunch and color.
• Spicy Version: Mix in chopped jalapeños or Sriracha mayo for a kick.
• Vegan Alternative: Swap tuna for mashed chickpeas and use vegan mayo, as in some vegetarian recipes.
• Cheesy Melt: Add cheese slices and broil for a warm tuna melt sub.
• Herby Twist: Incorporate fresh dill, parsley, or cilantro for brightness.
• Low-Carb Option: Serve the filling in lettuce wraps or over salad greens.

These ideas make it suitable for diets or occasions like school lunches.

Frequently Asked Questions (FAQs)

Can I use fresh corn instead of canned?

Yes! Boil or grill fresh corn kernels for a sweeter, fresher taste—just cool before mixing.

How long does tuna sweet corn filling last?

Refrigerate in an airtight container for up to 3 days; don't assemble subs until serving to avoid soggy bread.

Is this recipe gluten-free?

Naturally, yes—use gluten-free rolls and check mayo labels.

What's the best tuna for this sub?

Tuna in water for lighter flavor, or in oil for richer—always drain well.

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how to make simple TUNA SWEETCORN SANDWICH (5 minute recipe)

Why You'll Love This Easy Tuna Sweet Corn Sub

This tuna sweet corn sub is creamy, crunchy, and refreshingly simple—a healthy, no-fuss meal that's ready in a flash. Perfect for tuna lovers or anyone needing a quick, nutritious bite, it's a classic that'll keep you coming back. Give it a try and upgrade your sandwich game today!

Share your sub creations in the comments. Happy assembling!