Arugula, Tuna With Light Mayo in Sourdough Bread – Quick, Healthy & Hearty Meal

This sandwich makes a simple meal feel fresh and satisfying. The creamy tuna, made lighter with just enough mayo, pairs beautifully with the peppery bite of arugula. When tucked inside slices of crusty sourdough bread, every bite feels balanced with crunch, creaminess, and just the right amount of tang. It’s a recipe that comes together quickly but doesn’t feel rushed, making it perfect for lunch or an easy dinner.

What makes this sandwich stand out is the layering of textures and flavors. The sourdough gives a chewy, hearty base while the tuna salad adds richness without being too heavy. Fresh arugula brightens up the flavor and adds that peppery punch. I’ve always loved how something as simple as tuna and bread can feel completely upgraded with just a few thoughtful additions. This sandwich proves you don’t need fancy ingredients to enjoy something wholesome and flavorful.

Why You’ll Love This Recipe

This tuna sandwich checks all the boxes for flavor, ease, and balance.

Fresh taste: Arugula brings a peppery, crisp bite.

Creamy tuna: Light mayo keeps it creamy but not too heavy.

Sourdough base: Adds tangy flavor and chewy texture.

Quick prep: Easy steps that take only minutes.

Healthy balance: Packed with protein, greens, and good carbs.

Meal-friendly: Works for lunch, light dinner, or even a picnic.

A little secret I like is to toast the sourdough lightly before assembling. It gives the bread a crisp edge that holds the tuna filling better while also adding warmth and crunch. Another personal touch is squeezing a tiny bit of lemon juice into the tuna mix—it lifts the flavor and keeps it tasting fresh.

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Ingredients

For the Sandwich Filling:

• 1 can tuna in water, drained
  
• 1 ½ tablespoons light mayonnaise
  
• 1 teaspoon lemon juice (optional)
  
• ⅛ teaspoon salt
  
• ⅛ teaspoon black pepper
  

For Assembling:

• 2 slices of sourdough bread
  
• ½ cup fresh arugula leaves
  
• 1 teaspoon olive oil (optional, for bread)
  

Step-by-Step Instructions

1. Prepare the Tuna Mix

Drain the tuna well and place it into a mixing bowl. Add light mayonnaise, lemon juice if using, salt, and black pepper. Stir until the tuna becomes creamy but still has a little texture. Taste and adjust the seasoning if needed.

2. Toast the Bread

Place the sourdough slices in a toaster or skillet and toast until lightly golden. If you like, brush one side with a bit of olive oil before toasting for extra flavor and crunch.

3. Layer the Sandwich

Spread the tuna mixture evenly over one slice of sourdough. Add a generous layer of fresh arugula leaves on top of the tuna.

4. Finish and Slice

Top with the second slice of bread. Press down gently to hold everything together. Slice in half with a sharp knife for easier eating.

Serving Suggestions

This sandwich works beautifully on its own, but you can pair it with small sides to make a more filling meal. A bowl of vegetable soup or tomato soup matches perfectly with the creamy tuna. You can also serve it with a side salad if you want something light.

When I make this at home, I like adding a few pickle slices or a handful of kettle chips on the side for crunch. It feels like a café-style lunch but takes only minutes to put together. If I’m in a rush, I pack it in parchment paper, and it stays fresh and easy to eat on the go.

Tips & Variations

• Extra crunch: Add sliced cucumber or red onion to the layers.
  
• Cheesy twist: Place a slice of Swiss or provolone inside before closing the sandwich.
  
• Herb flavor: Mix fresh dill or parsley into the tuna for brightness.
  
• Lighter version: Swap sourdough with whole grain bread for more fiber.
  
• Make it spicy: Stir in a pinch of chili flakes or a dash of hot sauce.
  

Something I like to do is add a thin slice of avocado inside for extra creaminess without more mayo. It makes the sandwich feel richer and more filling, while the arugula still keeps it fresh.

Final Thoughts

Arugula, Tuna with Light Mayo in Sourdough Bread is the kind of recipe that proves simple food can still taste special. With just a few pantry staples and some fresh greens, you end up with a sandwich that’s filling, flavorful, and balanced. The creamy tuna with a peppery crunch from arugula and the tang of sourdough creates a meal that feels homemade but café-worthy.

The beauty of this recipe is how versatile it is. You can enjoy it as a quick lunch at home, pack it for work or school, or even serve it alongside a soup for a cozy dinner. It’s simple, healthy, and always satisfying. This sandwich has become a regular in my kitchen because it’s quick to make yet never feels boring.