This keto Tuna Melt Chaffle is deliciously cheesy and the perfect low carb lunch idea. If you are looking for an easy low carb sandwich that is sure to become a regular in your meal plan, this recipe is for you. By replacing traditional bread with a savory cheese-and-egg waffle, you can enjoy a classic comfort food favorite without the extra carbohydrates.
Why You Will Love This Recipe
You will love this Tuna Melt Chaffle because it perfectly mimics the texture of a toasted sandwich while remaining entirely gluten-free and keto-friendly. Chaffles are incredibly versatile and serve as a sturdy vehicle for the creamy, savory tuna salad. This recipe is quick to assemble, making it ideal for a busy weekday lunch or a satisfying dinner when you want something warm and comforting. Plus, the combination of melted cheddar and seasoned tuna provides a protein-packed meal that keeps you full for hours.
Ingredients
To make the chaffles, you will need:
- 2 large eggs
- 1 cup shredded mozzarella cheese
- 1/2 teaspoon salt
- 1/2 teaspoon pepper
To make the tuna salad and assemble the melt, you will need:
- 2 cans tuna in water, drained
- 1/4 cup red onion, chopped
- 1 stalk celery, chopped
- 2 tablespoons mayonnaise
- 1/2 tablespoon relish
- Salt and pepper to taste
- 1 slice cheddar cheese
Step-by-Step Instructions
- Preheat your oven to 350 degrees F and preheat your mini waffle iron. Spray the waffle iron with nonstick cooking spray to ensure the chaffles release easily.
- In a medium bowl, combine the eggs, shredded mozzarella cheese, salt, and pepper. Whisk them together until fully incorporated.
- Pour about 1/4 of the batter into the heated waffle iron, being careful not to overfill it. Cook for about 4 to 5 minutes for each chaffle until the edges are crispy. Set the finished chaffles aside to cool and firm up.
- While the chaffles are cooling, prepare the tuna salad. In a medium-size bowl, combine the drained tuna, chopped red onion, chopped celery, mayonnaise, relish, salt, and pepper. Stir until well combined.
- Arrange the tuna melt on a lined baking sheet. Place a generous scoop of the tuna salad onto one chaffle, top it with a slice of cheddar cheese, and place another chaffle on top to form a sandwich.
- Press down on the sandwich slightly and bake in the oven for 5 to 7 minutes, or until the cheese is perfectly melted.
- Remove from the oven and let it cool for about 3 minutes before serving.
Expert Tips / Pro Tips
For the best Tuna Melt Chaffle, let the chaffles sit for a minute or two after they come out of the waffle iron; this allows the cheese to firm up and creates a crispier “bread” texture. When making the tuna salad, ensure the tuna is well-drained so the sandwich doesn’t become soggy. Using a medium cheddar cheese provides a great balance of flavor that complements the tuna without overpowering it. If you want an even crispier sandwich, you can lightly butter the outside of the chaffles before putting the sandwich in the oven.
You can easily customize this recipe to suit your preferences. If you prefer a different cheese, try using Swiss, Provolone, or Pepper Jack for a spicy kick. For the chaffle base, you can swap the mozzarella for Monterey Jack or even a bit of Parmesan for extra crunch. If you are not a fan of relish, you can substitute it with chopped dill pickles or a teaspoon of Dijon mustard. For a spicy tuna version, add a dash of hot sauce or some diced jalapeños to the tuna mixture.
Serving Suggestions
The Tuna Melt Chaffle is a hearty meal on its own, but it pairs beautifully with a side of leafy greens or a simple cucumber salad. You can also serve it alongside some keto-friendly pickles or a handful of kale chips. If you are serving this for a larger lunch, a bowl of low-carb tomato soup makes for a classic “soup and sandwich” combination that is incredibly satisfying.
If you have leftovers, store the chaffles and the tuna salad separately in airtight containers in the refrigerator for up to 3 days. To reheat, it is best to use an air fryer or a toaster oven to maintain the crispiness of the chaffle. Avoid the microwave if possible, as it can make the chaffle soft and rubbery. You can freeze the plain chaffles by placing them in a freezer-safe bag with parchment paper between them for up to a month. Thaw and crisp them up in a toaster before assembling your sandwich.
Nutrition Information
| Nutrient | Amount Per Serving |
|---|---|
| Calories | 632 kcal |
| Total Fat | 37g |
| Saturated Fat | 15g |
| Cholesterol | 322mg |
| Sodium | 1975mg |
| Carbohydrates | 7g |
| Net Carbohydrates | 6g |
| Fiber | 1g |
| Sugar | 4g |
| Protein | 63g |
FAQ
What is a chaffle?
A chaffle is a keto-friendly waffle made primarily from eggs and cheese. It is a popular low-carb bread substitute because it is easy to make and very versatile.
Can I make the chaffles ahead of time?
Yes, you can make a batch of chaffles in advance and store them in the fridge or freezer. Just reheat them in a toaster or oven to get them crispy again before adding the tuna.
Is this recipe gluten-free?
Yes, since the Tuna Melt Chaffle uses eggs and cheese instead of flour-based bread, it is naturally gluten-free.
How do I know when the chaffle is done?
A chaffle is typically done after 4 to 5 minutes. You will know it is ready when the steam stops coming out of the waffle iron and the edges look golden and crisp.
Tuna Melt Chaffle
Ingredients
Method
- Preheat the waffle iron and spray with nonstick cooking spray; also preheat your oven to 350 degrees F.
- In a medium bowl, whisk together the eggs, shredded mozzarella cheese, salt, and pepper until well combined.
- Pour about 1/4 of the egg mixture into the waffle iron and cook for 4-5 minutes until crispy; repeat until you have enough chaffles for your sandwiches.
- In a separate medium-size bowl, combine the drained tuna, chopped red onion, celery, mayonnaise, and relish, then season with salt and pepper to taste.
- Assemble the sandwich by spooning the tuna mixture onto one chaffle, topping with a slice of cheddar cheese, and placing another chaffle on top.
- Place the assembled sandwich on a lined baking sheet and bake for 5-7 minutes until the cheese is melted.
- Remove from the oven and allow to cool for 3 minutes before serving.