Easy Healthy Tuna Melt (High Protein & Quick Lunch Idea)
If you love a good tuna melt but want a lighter, protein-packed version, this recipe is about to be your new obsession. Early in my pregnancy, tuna melts were one of my biggest cravings, and this is the healthier version I created so that I could enjoy Tuna Melts with better ingredients and more protein! This recipe is SO good. It’s quick, filling, and seriously so delicious.
My little trick? I toast the bread and melt the cheese first, then add the tuna mixture after. That way the outside of the sandwich gets perfectly crispy and golden, while the tuna inside stays cool, creamy, and fresh. It’s the best of both worlds!
With over 50 grams of protein per serving and simple, clean ingredients, this is the ultimate high-protein lunch that actually keeps you full for hours. The key is choosing a low-mercury, wild-caught tuna, and pairing it with clean swaps like avocado oil mayo from Primal Kitchen (use code CLAIRE for 10% off).

Why You’ll Love This Recipe
- Over 50g of protein to keep you full and fueled
- Under 500 calories so it’s light but still super satisfying
- Crispy, cheesy, melty, and the ultimate comfort food
- Ready in under 10 minutes, perfect for a quick lunch
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Ingredients
Wild-caught tuna: I love using mercury-tested tuna brands for a simple, high-quality protein source.
Plain Greek yogurt: Makes the tuna mixture creamy while adding extra protein.
Avocado oil mayo: Adds richness and classic tuna-salad flavor without needing much. Primal Kitchen or Sir Kensington’s are both great options.
Red onion, pickles, and parsley: Add crunch, freshness, and lots of flavor to every bite.
Garlic powder, salt, and pepper: Simple seasonings that bring the tuna salad together.
Sourdough bread: Gets perfectly crisp in the skillet and holds up beautifully with the creamy tuna filling. Use your favorite bread if preferred.
Thinly sliced cheddar cheese: Melts quickly and gives this tuna melt that classic cheesy, comforting flavor.
Ways to Serve
- Serve with fresh fruit, grapes, or apple slices for an easy lunch.
- Pair with a simple side salad, chopped veggies, or chips.
- Add sliced tomato, avocado, or baby spinach to the sandwich.
- Serve the tuna mixture over greens or with crackers for a no-cook option.
- Make a double batch of the tuna salad for quick lunches throughout the week.
Easy Swaps & Tips
Use your favorite bread: Whole wheat, multigrain, gluten-free bread, or an English muffin all work well.
Switch up the cheese: Cheddar is classic, but provolone, Swiss, Havarti, or pepper jack would all be delicious.
Make it spicy: Add diced jalapeño, red pepper flakes, hot sauce, or a little sriracha to the tuna mixture.
Add extra crunch: Celery or chopped dill pickles are great additions.
Keep the tuna cold: Toasting the bread and melting the cheese before adding the tuna is the trick that makes this sandwich extra good – the bread stays warm and crispy while the tuna remains cool and creamy.

Healthy Tuna Melt
Ingredients
- 1 can (5oz) wild caught tuna I use Safe Catch or another mercury-tested brand
- 1 tbsp plain Greek yogurt
- 1 tsp avocado oil mayo I recommend Sir Kensington's or Primal Kitchen
- 2 tbsp diced red onion
- 2 tbsp diced pickles
- 1 tbsp diced parsley
- 1/4 tsp garlic powder
- Salt + pepper, to taste
- 2 slices sourdough bread
- 2 slices thinly sliced cheddar cheese
- Olive oil spray
Instructions
- Drain the tuna and add to a mixing bowl. Stir in Greek yogurt, avocado oil mayo, diced red onion, pickles, parsley, garlic powder, salt, and pepper.
- Lightly spray a nonstick skillet with olive oil spray. Add the sourdough slices topped with cheddar cheese.
- Cover and cook for 1–2 minutes until the bread is golden brown and the cheese has melted.
- Scoop the tuna mixture inside, press the sandwich together, slice in half, and enjoy!
Notes
Want Meals Like This Planned for You Every Week?
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- Calories: 498
- Protein: 54g
- Carbs: 36g
- Fat: 15g

