
Savory tuna melt chaffles are my secret weapon for quick lunches when I want something warm, cheesy, and high in protein but do not want to fuss with bread. This low-carb twist on the classic tuna melt hits all the same comforting notes yet takes just minutes to pull off. Whether you are in a pinch for a busy weekday meal or need a crowd-pleasing snack, these chaffles have you covered.
I made these first when I was craving a tuna melt but wanted to skip the bread. Now I whip up a double batch every Sunday so I can have an easy protein-packed lunch for days.
Ingredients
- Tuna pouch: This is the star and brings lean protein plus classic flavor. I always taste before buying to make sure it does not taste fishy so choose a brand you love
- Shredded mozzarella cheese: This gives the gooey melt and holds everything together. Freshly shredded melts best and has great flavor but pre-shredded works fine in a pinch
- Egg: The binding agent that helps everything stay together. Always go for fresh large eggs for best results
- Salt: Just a pinch brightens up the flavors and brings everything together. Taste before adding more because the tuna and cheese already have salt
Instructions
- Preheat the Waffle Maker:
- Plug in the mini waffle or chaffle maker and let it heat up uncovered until the indicator says it is ready. Preheating gives you crispy edges and prevents sticking
- Mix the Batter:
- In a medium bowl vigorously whisk the egg until the yolk and white are fully combined. Add the drained tuna, shredded mozzarella, and pinch of salt. Fold the mixture together so every chunk of tuna is coated and the cheese is evenly dispersed
- Crisp the Cheese Base (Optional):
- For an extra craveable crust sprinkle a teaspoon of cheese directly onto the hot waffle maker surface and let it sizzle for about thirty seconds. It will bubble and crisp up which creates a super savory layer on your chaffle
- Cook the Chaffles:
- Spoon half of the tuna batter into the center of the hot waffle maker and press the lid down gently but firmly. Let it cook without peeking for about four minutes. The chaffle should be deeply golden with the cheese melted and the edges a bit crispy
- Finish and Repeat:
- Carefully remove the first chaffle with a fork or spatula and set aside. Repeat the process with the remaining batter to make the second chaffle. Let them cool for a minute to get their best texture before serving

Shredded mozzarella is definitely my favorite here because it melts so beautifully and gives the chaffles their signature pull apart cheese moments. My family likes to gather in the kitchen for the crispy cheese reveal every time we make these and each person tries to claim the best bite.
Storage Tips
Let the chaffles cool completely before storing them in an airtight container in the fridge. They will keep for up to three days and reheat perfectly in a toaster or air fryer. For longer storage layer between sheets of parchment paper and freeze in a zip top bag
Ingredient Substitutions
If you are out of mozzarella try Monterey Jack or cheddar for more of a sharp flavor. For a dairy free version use a plant based cheese that melts well. Canned salmon or shredded cooked chicken also work well instead of tuna
Serving Suggestions
Serve the tuna melt chaffles on their own for a simple lunch or pair them with a crisp green salad and sliced tomatoes. They also taste fantastic dipped in a little hot sauce or dijon mustard. For a heartier meal stack two chaffles with an extra slice of cheese between them
Cultural and Historical Context
Chaffles have become wildly popular with the rise of keto and low carb diets offering a new spin on sandwiches and melts. Tuna melts themselves have been around American diners since the forties and this version honors that tradition with a modern twist
Seasonal Adaptations
Add a small handful of chopped chives or scallions for a spring touch. Stir in a spoonful of canned pumpkin for fall and extra richness. Pair with tomato soup for a classic winter comfort meal
Success Stories
I had a friend who was super skeptical of the idea but one bite changed her mind and now she meal preps these for work lunches. Another family makes double batches for cross country road trips because they travel well and everyone loves them cold or warm
Freezer Meal Conversion
To freeze after cooling lay the chaffles in a single layer on a baking sheet. Freeze until solid then transfer to a freezer bag. Reheat straight from frozen in a toaster oven on low until heated through and crispy

These tuna melt chaffles are endlessly versatile and sure to become a go-to lunch or snack. Enjoy them warm for optimal melty cheese bliss.
Frequently Asked Questions
- → Can I use a regular waffle maker?
Yes, you can use a regular waffle maker; just adjust the amount of batter and cook time accordingly.
- → What can I substitute for mozzarella cheese?
Cheddar, Monterey Jack, or Swiss cheese work well as flavorful alternatives to mozzarella.
- → Is canned tuna suitable for this dish?
Both canned and packaged tuna can be used, as long as it is well-drained for best texture.
- → How do I make chaffles extra crispy?
Sprinkle a little cheese in the preheated maker before adding the mixture for a crispier exterior.
- → Can these chaffles be stored for later?
Yes, store cooled chaffles in an airtight container in the fridge; reheat in a toaster for best results.