Baked Keto Tuna Melt Cups
When I first created this recipe years ago, I called it a keto tuna melt. But then I realized that this name may not be a fair representation of a low-carb version of a tuna sandwich with melted cheese. Because, though this recipe uses canned tuna, mayonnaise and celery like traditional tuna fish salad sandwiches do, this baked treat is much more than that. These are really baked tuna melt cups made in a muffin pan. Best of all: each serving has only 1 gram of carbs.

Keto Tuna Melt
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So, what, then, is a keto tuna melt? Well, like I said, it has all of the same ingredients you would expect to find in a tuna sandwich that has melted cheese on it. But you aren’t using two pieces of bread with this recipe. In fact, there is no bread at all. Rather you’re using muffin tins like you might for low carb blueberry muffins and instead you are making mini tuna melt cups in them.
The best thing about these tuna melt cups is that they freeze well. That means they’re great for a grab-and-go lunch or snack. Then, just pop them in the microwave, toaster oven or even the air fryer to heat up and enjoy.

Ingredients
- 1 can canned tuna
- 2 large eggs
- 1/4 cup mayonnaise
- 1/4 cup plain Greek yogurt
- 1 1/2 cup sharp cheddar cheese shredded
- 1 stalk celery finely chopped
- 1/2 teaspoon salt
- 1/4 teaspoon black pepper
- avocado oil cooking spray

Instructions
Preheat the oven to 350 F and coat muffin tin with avocado oil spray.
Whisk the eggs in a mixing bowl. Then add the mayonnaise, Greek yogurt, salt and pepper and whisk together. Fold in the remaining ingredients and mix well.
Place mixture in the greased muffin pan. Bake for 25 minutes or until cheesy tops are golden brown. Let cool and enjoy!

Notes
I use a muffin tin with shallow cups so I can get 12 servings out of this recipe. If you use a muffin pan with bigger openings, you might only get six or eight servings. So adjust the macros accordingly.

No muffin pan or cups? No problem. You can bake this in a glass dish or bread pan the way you might an egg loaf. You’ll just have to be careful with how you cut the slices so the servings and macros are accurate.

Baked Keto Tuna Melt Cups
Equipment
Ingredients
- 1 can tuna flaked
- 2 large eggs
- 1/4 cup mayonnaise
- 1/4 cup plain Greek yogurt
- 1 1/2 cup sharp cheddar cheese shredded
- 1 stalk celery finely chopped
- 1/2 teaspoon salt
- 1/4 teaspoon black pepper
- avocado oil cooking spray
Instructions
- Preheat oven to 350 F and coat muffin tin with avocado oil spray.
- Whisk the eggs in a mixing bowl. Then add the mayonnaise, Greek yogurt, salt and pepper and whisk together. Fold in the remaining ingredients and mix well.
- Place mixture in greased muffin pan.
- Bake for 25 minutes or until cheesy tops are golden brown. Let cool and enjoy!