Easy Sardine Sandwich Recipe with Canned Sardines

When you need a quick, satisfying lunch that’s packed with flavor and nutrition, this sardine sandwich checks all the boxes.

Made with a can of sardines, a little Dijon mustard and crunchy celery, this sandwich comes together in just minutes.

Pile the sardine salad between thick slices of multigrain bread and top it with a thick slice of juicy tomato and some crisp lettuce for a nutrient-packed lunch that’ll keep you going all afternoon. 

Why You’ll Love this Recipe

• Ready in minutes. This recipe is perfect when you need lunch fast.
• Budget-friendly. A single can of sardines makes an inexpensive, protein-packed meal.
• Loaded with nutrition. Sardines are rich in protein, calcium, vitamin D, and heart-healthy fatty acids and healthy fats.
• Easy to customize. Add herbs, crunchy vegetables or your favorite seasonings to make it your own.
• Perfect for meal prep. Prepare the filling ahead of time for quick lunches throughout the week.
• Versatile. Enjoy it as a traditional sandwich, an open-faced sandwich or even as a filling for wraps and lettuce cups.

Ingredients

• Sardines packed in olive oil
• Mayonnaise
• Dijon mustard
• Celery
• Capers
• Multigrain bread
• Lettuce and tomato, if desired

How to Make a Sardine Sandwich

Make the Sardine Salad

We are making sardine salad just like we would make tuna salad.

Start by draining the sardines and flaking them with a fork. Then, stir in the mayonnaise, mustard, capers and chopped celery. 

Build the Sandwich

Spread the sardine salad onto a slice of bread. Top it with lettuce and tomato, if desired. Finish with another slice of bread. Too easy! 

Variations and Substitutions

• Have fun with the mix-ins. Try chopped red onion or pickles instead of or in addition to the celery and capers.
• Swap mayonnaise with Greek yogurt for extra protein. 
• Mix in chopped fresh herbs like parsley, dill, or chives.
• Make it a melt. Turn it into a warm sandwich by topping with cheese and broiling it like a tuna melt.
• Lower the carbs. Skip the bread and serve the sardine salad over a bed of greens.

Serving Suggestions

This sandwich pairs wonderfully with:

• Potato chips
• Fresh fruit
• Pickles
• Pasta salad
• Potato salad
• Tomato soup

Storage Instructions

Store leftover sardine filling in an airtight container in the refrigerator for up to 2 days.

Always assemble the sandwich just before serving to keep the bread fresh.

What Bread Works Best for a Sardine Sandwich?

Almost any sturdy bread works well, but the best choice depends on the texture you enjoy.

A rustic bread like sourdough or a crusty loaf like a baguette hold up beautifully to the creamy filling without becoming soggy. Whole grain bread adds extra fiber and a slightly nutty flavor, while toasted rye pairs especially well with the richness of sardines.

It really comes down to personal preference. 

Can You Make This Sandwich Ahead of Time?

Yes! The sardine filling can easily be prepared in advance. 

Store the prepared filling in an airtight container in the refrigerator for up to 2 days. Wait to assemble the sandwich until you’re ready to eat so the bread stays fresh and crisp.

For best results, let the filling sit at room temperature for 10-15 minutes before enjoying.

If you’re packing lunch for the day, keep the filling and bread separate until you’re ready to eat.

Are Sardines Healthy?

Absolutely! Sardines are considered one of the most nutrient-dense seafood choices available.

They’re an excellent source of:

• High-quality protein
• Omega-3 fatty acids
• Calcium (thanks to the edible bones)
• Vitamin D
• Vitamin B12
• Selenium

 Because sardines are smaller fish, they also tend to contain lower levels of mercury than many larger seafood varieties.

Are Sardines Better Than Tuna?

Both sardines and tuna are healthy choices, but sardines have several nutritional advantages.

Sardines have more omega-3 fatty acids, vitamin D, and often contain less mercury since they are much lower on the food chain. They’re also a natural source of creatine, giving them a leg up over tuna for muscle building. 

Tuna is leaner and has a milder flavor, making it a favorite for classic sandwiches. But if you’re looking for maximum nutrition, sardines are often the better option.

When you make this sardine salad sandwich, I’d love to hear about it! Drop a rating or leave a comment below. Enjoy!

For more sardine recipes, try these:

• Quick and Easy Sardine Fried Rice
• Sardine Toast with Tomato and Onions
• Sardine Pasta with Lemon and Capers