Lemon Garlic Tuna Spaghetti

Featured in: Quick & Easy Meals

This bright, flavorful pasta brings together flaky tuna and zesty lemon with aromatic garlic for a quick, satisfying dish. Tender spaghetti is cooked al dente and combined with a savory sauce made from olive oil, garlic, lemon zest, lemon juice, and tuna. A hint of red pepper flakes adds subtle heat, while fresh parsley brightens the finish. This dish is perfect for easy weeknight meals and pairs well with crisp white wine. Simple ingredients come together quickly to create a vibrant Mediterranean-inspired experience.

Updated on Sun, 21 Dec 2025 14:39:00 GMT
Fragrant lemon-garlic tuna spaghetti: A beautifully plated dish, ready for a delicious Mediterranean dinner. Save to Pinterest
Fragrant lemon-garlic tuna spaghetti: A beautifully plated dish, ready for a delicious Mediterranean dinner. | krispyrecipes.com

I was standing in my kitchen on a rainy Tuesday, staring at a nearly empty pantry. All I had was a box of spaghetti, a couple cans of tuna, and a lemon rolling around in the crisper drawer. I figured I'd throw something together just to get dinner on the table, but what came out of that skillet surprised me. The garlic sizzled in the olive oil, the lemon juice brightened everything, and suddenly I had this light, fragrant pasta that tasted like I'd planned it all along.

The first time I made this for my neighbor, she leaned over the bowl and said it smelled like summer on the Amalfi Coast. I laughed because I'd never been, but I understood what she meant. There was something about the way the lemon hit the steam and mixed with the garlic that felt like a memory, even if it wasn't mine yet.

Ingredients

  • Spaghetti: Use the regular dried kind, it holds the sauce better than fresh and doesn't turn mushy if you toss it while it's still hot.
  • Olive oil: This is your base, so don't skimp. A fruity, good quality oil makes the whole dish taste richer.
  • Garlic: Slice it thin so it softens and perfumes the oil without burning. I learned that the hard way once when I chopped it too thick.
  • Lemon: Both the zest and juice are essential. The zest gives you that bright, floral note, and the juice cuts through the oil.
  • Tuna in olive oil: The kind packed in oil tastes so much better than water-packed. It blends into the sauce and doesn't dry out.
  • Red pepper flakes: Just a pinch adds warmth without making it spicy. You can leave it out if you're serving kids.
  • Fresh parsley: It adds color and a grassy freshness that balances the richness of the tuna.
  • Pasta water: This starchy liquid is what turns everything into a silky sauce instead of a dry toss.

Instructions

Boil the Pasta:
Get your water boiling with a generous pinch of salt, then cook the spaghetti until it still has a little bite. Before you drain it, scoop out a mugful of that cloudy pasta water and set it aside.
Cook the Garlic:
Heat the olive oil over medium heat and add the garlic slices. Let them sizzle gently until they smell sweet and toasty, but pull them off the heat before they turn brown.
Add the Tuna:
Flake the tuna into the skillet and stir it around with the garlic. Add the lemon zest, juice, and a pinch of red pepper if you like a little heat, then let it warm through for a couple minutes.
Toss It Together:
Add the drained spaghetti right into the skillet and toss everything together. Pour in a little pasta water at a time, stirring until the sauce clings to the noodles and everything looks glossy.
Finish and Serve:
Stir in the chopped parsley, taste for salt and pepper, then divide it among bowls. Finish with extra parsley and a lemon wedge on the side for squeezing.
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I remember serving this to my brother after he came home late from work one night. He ate it standing up at the counter, twirling the spaghetti with a fork and nodding between bites. He didn't say much, but when he handed me the empty bowl and asked if there was more, I knew it had become one of those recipes I'd make again and again.

What to Serve Alongside

I usually keep it simple with a green salad dressed in olive oil and vinegar, maybe some crusty bread if I have it. The pasta is light enough that you don't need much else, but a glass of chilled white wine makes it feel a little more special without any extra effort.

How to Store Leftovers

This pasta is best eaten right away, but if you have leftovers, store them in an airtight container in the fridge for up to two days. Reheat gently in a skillet with a splash of water or olive oil to bring back the moisture, because the noodles soak up the sauce as they sit.

Ways to Make It Your Own

Sometimes I toss in a handful of halved cherry tomatoes when I add the tuna, and they burst into little pockets of sweetness. Capers are another favorite, they add a briny pop that plays off the lemon beautifully. If you want more green, a handful of baby spinach stirred in at the end wilts right into the pasta and makes it feel a bit more virtuous.

  • Add a tablespoon of capers for a salty, tangy kick.
  • Toss in halved cherry tomatoes for bursts of sweetness.
  • Stir in fresh spinach at the end for extra color and nutrition.
Warm, inviting bowl of Lemon-Garlic Tuna Spaghetti: Flaky tuna, bright lemon zest, and al dente pasta. Save to Pinterest
Warm, inviting bowl of Lemon-Garlic Tuna Spaghetti: Flaky tuna, bright lemon zest, and al dente pasta. | krispyrecipes.com

This dish taught me that some of the best meals come from what you already have. It doesn't need to be fancy to feel like something worth sharing.

Common Recipe Questions

How do I prevent the tuna from drying out?

Use tuna packed in olive oil and add it gently to the warm skillet, cooking just until heated through to maintain moisture.

Can I use fresh garlic instead of sliced garlic?

Yes, fresh garlic minced fine works well; just cook it gently to avoid burning and bitterness.

What is the purpose of reserved pasta water?

Adding reserved pasta water helps to loosen the sauce and achieve a smooth, silky coating on the spaghetti.

How can I adjust the heat level in this dish?

Adjust crushed red pepper flakes to your preference or omit them entirely for a milder flavor.

What sides pair well with this tuna spaghetti?

Light salads, crusty bread, or a crisp white wine like Pinot Grigio complement the flavors nicely.

Lemon Garlic Tuna Spaghetti

Spaghetti blended with tuna, lemon zest, garlic, and parsley for a quick vibrant Mediterranean dish.

Prep Duration
10 minutes
Cooking Duration
15 minutes
Overall Time
25 minutes
Created by Mia Harper

Recipe Type Quick & Easy Meals

Skill Level Easy

Cuisine Type Italian

Total Portions 4 Serving Size

Dietary Considerations No Dairy

What You’ll Need

Pasta

01 14 oz dried spaghetti

Sauce

01 2 tbsp olive oil
02 3 garlic cloves, thinly sliced
03 1 lemon, zest and juice
04 2 cans (5.6 oz each) tuna in olive oil, drained and flaked
05 1/2 tsp crushed red pepper flakes (optional)
06 1/4 cup fresh flat-leaf parsley, chopped
07 1/4 cup reserved pasta cooking water
08 Salt and freshly ground black pepper, to taste

Toppings

01 Extra chopped parsley for garnish
02 Lemon wedges, to serve

How to Make It

Step 01

Cook Pasta: Bring a large pot of salted water to a boil. Cook spaghetti following package instructions until al dente. Reserve 1/4 cup pasta cooking water, then drain pasta.

Step 02

Prepare Sauce Base: Heat olive oil in a large skillet over medium heat. Add sliced garlic and sauté for 1 to 2 minutes until fragrant but not browned.

Step 03

Add Tuna and Flavorings: Incorporate drained tuna, breaking it up gently with a spoon. Stir in lemon zest, lemon juice, and red pepper flakes if using. Cook for 2 to 3 minutes, stirring gently.

Step 04

Combine Pasta with Sauce: Add cooked spaghetti to the skillet. Toss to combine, gradually adding reserved pasta water until sauce coats pasta lightly.

Step 05

Finish and Season: Stir in chopped parsley. Adjust seasoning with salt and freshly ground black pepper to taste.

Step 06

Serve: Plate the pasta, garnish with extra parsley, and serve with lemon wedges.

Tools You’ll Need

  • Large pot
  • Large skillet
  • Colander
  • Wooden spoon
  • Zester or fine grater

Possible Allergens

Double-check each ingredient for allergens and consult an expert if you're unsure.
  • Contains fish (tuna) and gluten (spaghetti). Check pasta packaging for possible egg or wheat allergens if gluten intolerant.

Nutritional Information (per serving)

This data is for informational purposes and shouldn't replace professional advice.
  • Calorie Count: 480
  • Total Fat: 14 grams
  • Total Carbohydrates: 62 grams
  • Protein Content: 28 grams