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Isalnd Trollers Tuna Cake Sandwiches on toasted Parmesan sourdough bread. For the best golden brown crispy crust, spread your sandwich with some butternaise.

You may remember my Tuna Cakes. I do! I remember them fondly (drool drool!). Made with yummy and super fresh Island Trollers Albacore Tuna. Their tuna is amazing, and as they state on their website, “Each fish is caught one at a time in the beautiful waters of the North Pacific. We are proud to be involved in this sustainable fishery off the West Coast of the United States. Each can is raw packed and cooked only once. This is sashimi grade albacore in a can, the finest you will find anywhere in the world!”
Ah, I simply adore them!
Well, I was fondly remembering those Tuna Cakes the other day, and it hit me… a sandwich made with Tuna Cakes. Perfect! Now, this is no ordinary sammie. This is a messy, full flavored, savory, filled with goodness, tasty treat! I mean a finger licking cheesy Parmesan sammie filled with sustainable tuna! Yep, that’s a perfect lunch! But be sure to have a napkin next to you!

I loaded my sammies up with fresh spinach leaves, tomato slices, and red onion. I don’t think they need any mayo because the bread is already Parmesan toasted. But, feel free to load up whatever you like on your sammie: lettuce, grilled onion, shredded carrots, whatever makes you happy.
As a reminder, if you’re making these recipes with {affiliate link} Island Trollers Tuna you don’t want to drain off those tasty juices from the can; they are the juices from the fish itself, not just plain ol’ water or oil. Those juices are loaded with Omega 3s. So, it might feel a little weird not to drain the tuna, but don’t do it.
I’m particularly fond of the {affiliate links} Alder Smoked for these Tuna Cakes; the garlic or capers would also be fantastic. But I’ve found that all their flavors are super yummy and pretty interchangeable in any of my recipes.


Check out all my Island Trollers recipes, and read my Tuna Chowder post about how I started working with Island Trollers.

Disclaimer: I was provided with cans of awesome Island Trollers Tuna for my participation, however, all opinions are my own.

Island Trollers Tuna Cake Sandwiches on Toasted Parmesan Sourdough Recipe

Tuna Cakes Sandwiches with Parmesan Toasted Sourdough
Ingredients
- 1 recipe tuna cakes
- 1/2 cup freshly grated Parmesan cheese
- salted butter at room temperature or spreadable butter enough for a light smear
- 8 slices sourdough bread
- Fresh spinach
- Tomato slices
- Thinly sliced red onion
- Toppings of your choice
Instructions
- Make the tuna cakes and let them rest in the fridge.
- Towards the end of the resting time for the Tuna Cakes, start prepping the Parmesan Toasted Sourdough. Grate the Parmesan onto a plate. Lightly spread butter on one side of each slice of Sourdough bread. Press buttered side of bread onto grated Parmesan.
- Heat a large skillet, preferably a well-seasoned iron skillet, over medium heat. Place Parmesan sourdough cheese side down in skillet and cook until cheese has melted and turned golden brown. Place Parmesan sourdough cheese side up on a plate, and continue cooking all slices of bread in this manner.
- Once bread has all been toasted, wipe out skillet, and heat 1 tablespoon oil in the same skillet set over medium heat. Once oil is hot, carefully place the patties one at a time in the pan, being careful not to overcrowd the pan. Cook patties until they are golden brown on the first side, about 3 to 5 minutes. Carefully flip cakes and fry on other side until golden brown, about 4 minutes. Remove the cakes from the pan once they’re golden brown on each side, and place cooked Tuna Cake on toasted Sourdough bread. Fry up additional patties, adding oil between each, as necessary.
- Garnish sandwiches with desired toppings, such as fresh spinach, tomato slices, and red onion slices. Devour!
Notes
Nutrition
Nutritional information is based on third-party calculations, and should be considered estimates. Actual nutritional content will vary based on brands used, measuring methods, portion sizes, and more.



Sophia @ NY Foodgasm
Never had a tuna cake, but I would love to try one with fresh tuna, WOW!
culinaryginger
The perfect sandwich, that’s all I can say through the drool 🙂
Nancy Fox
I love tuna cakes. Your creation looks fantastic Debi!
rosiesmom
What a fantastic recipe for tuna lovers!
Sheena
This looks so delicious! Such a perfect lunch!
Allison
Debi, these look fantastic and summery and deeeelish! I love that you used sustainable tuna! I think it’s a really important choice 🙂 Those juicy tomatoes look like the perfect compliment. I’ll have to wait a while yet until my local good tomatoes come out… or feel free to send some my way! 😉
Linda
Absolutely drool-worthy..and I rarely eat sandwiches! Everything ingredient you chose has worked together to create the perfect marriage of texture, color and flavors. Well done!
savoryexperiments
Debi, your photos are gorgeous! I hadn’t even read the title and I wanted to eat whatever was on that plate! Pinned!
URBAN BAKES
This is truly making me hungry right now for lunch!
Dorit Sasson
I’m not really into tuna, but tuna cakes might work considering the ingredients are healthy and yummy. Bookmarking this page!
Dorit Sasson
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Celebteenlaundry
This looks delicious, I love tuna and sandwiches; put them together and it’s a beautiful thing.
Ana Wilde
You had me intrigued with the title so I had to stop by and see what that was and I’m not disappointed. It reminds me I used to eat toasted fish finger sandwiches with Heinz tomato ketchup when I was a girl. Your recipe is nicer of course, but now I’ve a hankering for one of those sandwiches again 🙂
Dan
I’m a tuna lover from way back and I can’t imagine how anything could look any better! Very nicely done.
Debra
I actually grew up on tuna cakes. My husband hates them, but they are very nostalgic and comforting for me!
Christianna Caeliss
You know, I’ve never liked tuna because it’s so often shredded and mixed with mayo, but after seeing this recipe (and the dazzling photos) I’m kind of thinking I’d like to try one! Esp if it’s from such clean waters and so pure.
I also really love your ‘save this recipe’ feature, very cool 🙂
Heather
I’m gonna have to try this! I never thought about combining the above ingredients, but really it just looks mouth watering!
Kungphoo
It looks good, and i am sure it tastes good.. i am just not a tuna fan..
Debi
Robert, that’s the beauty of Island Trollers. It isn’t that simple plain grocery store tuna. It’s fresh and delish! You should give it a try.
bakesinslippers
What a great recipe. I haven’t ever had a tuna cake before.
Robin
That is perfect for lunch on the weekends! I haven’t had tuna cakes in years!