This Cucumber Tuna Sandwich is fresh and tasty! It features creamy tuna mixed with crisp cucumber, all between two slices of bread. Perfect for a quick lunch or snack!
I love how the crunchy cucumber adds a nice twist to the classic tuna. Plus, it’s super easy to make—just mix, spread, and munch away! Yum! 😋
Key Ingredients & Substitutions
Tuna: Canned tuna is the star of this sandwich. I prefer tuna in water for a lighter option, but oil-packed tuna can add more richness. If you’re vegetarian, consider substituting with chickpeas mashed for a similar texture.
Mayonnaise: This adds creaminess. If you want a lighter version, use Greek yogurt instead. It gives a tangy flavor and extra protein! Some folks also add avocado for creaminess and healthy fats.
Cucumber: Thin slices of cucumber give a refreshing crunch. If cucumbers aren’t available, shredded carrots or radishes can work well too. They add a nice texture and flavor, just a bit different!
Bread: I love whole wheat bread for added fiber and flavor. However, feel free to use any bread you like—rye or sourdough are tasty alternatives!
How Do I Make the Tuna Mixture Creamy?
Mixing the tuna well is key to a creamy consistency. Here’s how to make the tuna mixture perfect:
- Start with drained tuna in a medium bowl, breaking it apart with a fork.
- Add mayonnaise (and Dijon, if using). Blend until smooth and creamy.
- Incorporate chopped celery and green onion for crunch and flavor. Mix gently.
When seasoning, taste as you go—this helps you find your perfect balance of salt and pepper!
Feel free to be creative with the ingredients, and enjoy your Cucumber Tuna Sandwich!

How to Make a Delicious Cucumber Tuna Sandwich
Ingredients You’ll Need:
Main Ingredients:
- 1 can (5 oz) tuna in water, drained
- 2 tablespoons mayonnaise
- 1 teaspoon Dijon mustard (optional)
- 1 celery stalk, finely chopped
- 1 green onion, chopped
- Salt and black pepper, to taste
- 1 small cucumber, thinly sliced
- 6 slices whole wheat or white sandwich bread
Garnish & Extras:
- Fresh parsley or dill for garnish (optional)
- Lemon wedge (optional)
How Much Time Will You Need?
This delightful sandwich takes about 10 minutes to prepare. It’s perfect when you’re in need of a quick and refreshing meal, making it a go-to for busy days or spontaneous picnics!
Step-by-Step Instructions:
1. Prepare the Tuna Mixture:
In a medium bowl, mix the drained tuna with mayonnaise, and Dijon mustard if you want a bit of a kick. Add the finely chopped celery and green onion for some nice crunch and flavor. Stir everything together until it’s creamy and well combined.
2. Season It Up:
Carefully season your tuna mixture with salt and black pepper to taste. Give it another quick stir to blend the spices in. Taste it to make sure it’s just right!
3. Spread It on Bread:
Take 3 slices of bread and lay them out on a clean surface. Now, grab a spoon and evenly spread the tuna mixture across each of the bread slices, making sure to cover them well.
4. Add the Crunchy Cucumber:
Take your thin cucumber slices and layer them over the tuna mixture on each slice. This will add that refreshing crunch we love in a sandwich!
5. Assemble Your Sandwich:
Place the remaining 3 slices of bread on top to create sandwiches. Press down just a little to hold everything together.
6. Garnish and Serve:
If you’d like, add a cucumber slice on top of each sandwich and sprinkle with fresh parsley or dill for an extra touch. Finally, cut the sandwiches diagonally or in halves. Serve them immediately and enjoy!
For an extra zing, feel free to squeeze a little lemon juice over the tuna mixture before assembling. Enjoy your fresh and crunchy Cucumber Tuna Sandwich!
Can I Use Different Bread for This Sandwich?
Absolutely! While whole wheat and white bread work great, feel free to use your favorite type like rye, sourdough, or even a gluten-free option if needed. Just make sure it’s sturdy enough to hold the filling!
What Can I Use Instead of Mayonnaise?
If you’re looking for a lighter option, Greek yogurt is a fantastic substitute! It adds creaminess with a tangy flavor. You can also use avocado for a creamy, healthy alternative.
How Long Will Leftovers Last?
Any leftover tuna mixture can be stored in an airtight container in the fridge for up to 2 days. However, it’s best to assemble the sandwiches fresh to keep the bread from getting soggy.
Can I Add Other Ingredients to the Tuna Mixture?
Definitely! Feel free to add ingredients like chopped pickles, grated carrots, or even diced bell peppers for extra flavor and crunch. Customize it to your taste!



