Copycat Subway Tuna Sandwich

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For decades, Subway has provided a quick and healthy-ish sandwich option for your lunch break, road trips, or a fast-casual snack. Their tuna salad sub is one of their most popular. It consists of creamy tuna salad on your choice of bread, topped with a personalized assortment of vegetables.

In the 10 minutes it takes you to travel to Subway, why not make your own Copycat Subway Tuna Sandwich at home? A homemade tuna sub is just as customizable as the restaurant, only you control the quality of ingredients. This sandwich is an elevated, upscale version of the restaurant version.

A great sub sandwich begins with some freshly baked bread. Use your favorite bread to make your perfect sandwich. The recipe as written uses a quality bakery baguette with a fluffy, tender middle and a crisp outer crust. A nice chewy bread is in great contrast to all the fresh vegetables inside the sandwich.


The most important component in a tuna sandwich is the actual tuna salad. Subway keeps their recipe pretty plain. This is because so many flavorful veggies top the sandwich. The tuna is made simply of canned fish, mayonnaise, minced onion, lemon juice, salt, and pepper. Feel free to add your favorite elements to your tuna salad.

Your preferred sandwich toppings might look different than the ones listed below. That’s okay! The beauty of a make-your-own sandwich shop is that you have the freedom to design your perfect sandwich. The same principle works for cooking. Add your favorite toppings to your homemade version.

Instead of eating processed ingredients from fast food establishments, it is much healthier to make your own versions at home. Fast-food chains are not known for their low sugar content or nutritional value, so you are doing your body well by eating healthier ingredients. Using less processed ingredients in your cooking is linked to a wide range of health benefits.

Easily pre-make this sandwich before work and you will have a fresh sandwich ready whenever you are hungry. Don’t forget the personal bag of chips and a drink to complete your lunch! This homemade Copycat Subway Tuna Sandwich will save you time and money along the way.

How to Make It

  • Prep Time10 min
  • Total Time10 min
  • Serving Size1 sandwich
  • Energy821 cal


For the Tuna Salad:

For the Sandwich:



Begin by making the tuna salad. Drain your tuna very well. You can use either tuna packed in oil or packed in water. Add the drained tuna to a small bowl. Add mayo, minced onion, lemon juice, and salt and pepper to taste. Mix very well. Taste for seasoning and set the tuna salad aside.


Assemble the sandwich. Slice your baguette open lengthwise. Toast it in the oven at 350 degrees F for about 5-7 minutes, if desired. This creates a crunchier outside.


On one side of the split bread, spread your mustard out to a thin, even layer. On the other side, spread the mayonnaise evenly to cover. Layer the cucumber slices in a shingled pattern, topping with the green bell pepper, shredded iceberg lettuce, tomato slices, pickles, and black olives.


On the other side, spoon your tuna salad onto the bread. Top the lettuce side with olive oil and vinegar. Top the whole sandwich with salt and pepper to taste.


Carefully close the sandwich and wrap it tightly in wax or parchment paper. Slice through the middle of the sandwich with a sharp knife and enjoy warm or at room temperature.

  • Nutrition Facts

  • Serving Size1 sandwich
  • Amount per serving
  • Calories821
  • % Daily Value*Standard DV
  • Total Fat43.7 g78 g56.03%
  • Saturated Fat7.1 g20 g35.5%
  • Cholesterol62 mg300 mg20.67%
  • Sodium1394 mg2300 mg60.61%
  • Total Carbohydrate53.1 g275 g19.31%
  • Dietary Fiber6.6 g28 g23.57%
  • Total Sugars13.2 g
  • Protein55.4 g50 g110.8%
  • Calcium88 mg1300 mg6.77%
  • Iron7 mg18 mg38.89%
  • Potassium1262 mg4700 mg26.85%

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