This Cucumber Tuna Sandwich is super refreshing and perfect for a light lunch! It’s made with creamy tuna mixed with crunchy cucumber slices, all tucked in soft bread.
I love making these sandwiches on a sunny day. They are so easy to whip up, and there’s nothing better than that crisp cucumber crunch with tuna. Yum! 🥪
Key Ingredients & Substitutions
Tuna: Canned tuna is the star here. I recommend using tuna packed in water for a lighter taste. If you’re looking for a sustainable option, try using skipjack or pole-caught tuna. You can also use canned salmon as a tasty alternative.
Mayonnaise: Standard mayonnaise works well, but if you want a lighter option, plain Greek yogurt is an excellent substitute. It adds creaminess and a bit of tanginess!
Cucumber: Fresh cucumber adds crunch and freshness. If you want more flavor, try using pickled cucumbers or radishes. For a feather-light option, thinly sliced avocado can work as a substitute too.
Bread: Whole grain bread is my go-to for added fiber, but you could use any bread you prefer, like sourdough or rye. For gluten-free options, check out gluten-free bread or lettuce wraps for a lighter touch.
How Can I Make Sure My Tuna Mixture is Balanced?
The key to a great tuna mixture is achieving the right blend of flavors and textures. Here’s how to do it:
- Start by draining the tuna well; excess water can make the mixture watery.
- Blend the tuna with mayonnaise until creamy. Adjust the amount based on how creamy you like it!
- Add the chopped green onion (or chives) for a subtle oniony bite.
- Season with salt and pepper. Always taste and adjust to your preference to make sure it’s just right.
Mix well to get all the flavors combined, ensuring that every bite of your sandwich is delicious!

How to Make a Refreshing Cucumber Tuna Sandwich
Ingredients You’ll Need:
- 1 can (5 oz) tuna packed in water, drained
- 1/4 cup mayonnaise
- 1 tbsp finely chopped green onion or chives
- Salt and pepper, to taste
- 1 small cucumber, thinly sliced
- 4 slices whole grain or multigrain bread
How Much Time Will You Need?
This delicious Cucumber Tuna Sandwich takes about 10 minutes to prepare. It’s a quick and easy option for lunch or a snack that you can whip up in no time!
Step-by-Step Instructions:
1. Make the Tuna Mixture
In a medium bowl, combine the drained tuna, mayonnaise, and finely chopped green onion (or chives). Add a pinch of salt and pepper to taste. Mix everything together well until it’s creamy and fully combined. This will be the mouthwatering filling for your sandwiches!
2. Prepare the Bread
Lay out your slices of whole grain or multigrain bread on a clean surface or cutting board. Make sure they are evenly spaced so you can easily assemble your sandwiches.
3. Assemble the Sandwiches
Take two slices of bread and evenly spread the creamy tuna mixture on each slice. Make sure to cover them fully so every bite is delicious!
4. Add the Fresh Cucumber
Top the tuna spread with a layer of thin cucumber slices. This adds a refreshing crunch to your sandwich, making it even more enjoyable.
5. Close and Cut
Take the remaining two slices of bread and place them on top of the cucumber. Press down gently to secure the sandwiches together. If you’re feeling fancy, you can cut each sandwich in half diagonally before serving.
6. Serve and Enjoy!
Your Cucumber Tuna Sandwich is ready to eat! Serve it immediately for the best flavor and freshness. Perfect for a quick lunch or a light snack!
Enjoy this refreshing and light sandwich perfect for any time of the day!
Can I Use Greek Yogurt Instead of Mayonnaise?
Absolutely! Greek yogurt is a great substitute for mayonnaise. It adds a creamy texture and a bit of tang, making your sandwich a bit lighter and healthier.
How Can I Store Any Leftover Tuna Mix?
If you have leftover tuna mixture, store it in an airtight container in the fridge. It should stay fresh for up to 2 days. Just give it a good stir before using it again!
What Other Vegetables Can I Add?
You can definitely customize your sandwich! Try adding sliced tomatoes, avocado, or even shredded carrots for extra crunch and flavor. Just keep in mind that moisture from some veggies might require slightly more tuna or mayonnaise.
Can I Make This Sandwich Ahead of Time?
Yes, you can make the tuna mixture ahead of time! However, it’s best to assemble the sandwiches just before serving to keep the bread fresh and the cucumbers crisp. If making ahead, store the components separately in the fridge.


