Lemon Garlic Tuna Spaghetti

Featured in: Family-Friendly Meals

This vibrant pasta dish blends tender spaghetti with flaky tuna, zesty lemon, and aromatic garlic to create a quick, flavorful meal. Olive oil gently cooks the garlic before mixing in tuna and lemon, forming a bright sauce that lightly coats the pasta with added parsley for freshness. A sprinkle of red pepper flakes adds a subtle kick, while lemon wedges provide extra zest at the table. Ideal for busy evenings, this Mediterranean-style combination balances simple ingredients for tasty satisfaction.

Updated on Tue, 23 Dec 2025 08:14:00 GMT
Steaming Lemon-Garlic Tuna Spaghetti, a flavorful pasta dish with flaky tuna and bright lemon zest. Save
Steaming Lemon-Garlic Tuna Spaghetti, a flavorful pasta dish with flaky tuna and bright lemon zest. | fluxbaker.com

The first time I made this pasta was on a Tuesday evening when I had absolutely zero energy for cooking. I ended up throwing together whatever I had in the pantry, and somehow this bright, zesty combination became the dinner my roommates still ask for years later.

I served this at a last minute dinner party once when three friends unexpectedly showed up at my door. They hovered around the stove, breathing in the garlic lemon aroma, and ended up sitting on my kitchen floor eating straight from the pan because I hadnt set the table.

Ingredients

  • 400 g (14 oz) dried spaghetti: This dish works best with standard spaghetti something about the thin noodles catching all that garlicky lemon sauce just feels right
  • 2 tbsp olive oil: Use the good stuff here since youre not cooking with much fat and the oil really carries the flavor
  • 3 garlic cloves, finely sliced: Slice them thin instead of mincing so they gently infuse the oil without turning bitter
  • 1 lemon, zested and juiced: Both zest and juice are non negotiable the zest gives you that bright aromatic hit while the juice provides acidity
  • 2 × 160 g (5.6 oz) cans tuna in olive oil, drained and flaked: Spring for tuna packed in olive oil rather than water it makes a huge difference in richness and flavor
  • 1/2 tsp crushed red pepper flakes (optional): I add this every time now because that gentle heat cuts through the oil and wakes everything up
  • 1/4 cup fresh flat-leaf parsley, chopped: Flat leaf has a cleaner more delicate flavor than curly parsley and it looks gorgeous against the pale pasta
  • 1/4 cup pasta cooking water: Do not forget this starchy liquid is what transforms the oil and lemon into a silky sauce that actually clings to noodles
  • Salt and freshly ground black pepper, to taste: Taste as you go especially with the salt since the tuna and pasta water both add salinity
  • Extra chopped parsley, for garnish: Fresh herbs on top make even the simplest weeknight dinner feel intentional and cared for
  • Lemon wedges, to serve: Passing extra lemon at the table lets everyone adjust the brightness to their liking

Instructions

Boil the pasta water:
Bring a large pot of generously salted water to a boil I make mine taste like the ocean then cook spaghetti until al dente. Before draining scoop out 1/4 cup of that cloudy starchy cooking water and set it aside.
Infuse the garlic oil:
While the pasta bubbles away heat olive oil in a large skillet over medium heat and add those sliced garlic cloves. Let them sizzle gently for 1 to 2 minutes until you can smell them but they are still pale any golden color means they are getting too bitter.
Build the sauce base:
Add the drained tuna to the skillet breaking it into flakes with a wooden spoon. Stir in lemon zest lemon juice and red pepper flakes if you are using them then let everything mingle for 2 to 3 minutes.
Combine and toss:
Dump the cooked spaghetti right into the skillet and toss it all together adding that reserved pasta water a splash at a time. Keep tossing until the oil lemon juices and starch emulsify into a glossy light sauce that coats every strand.
Finish and season:
Stir in the chopped parsley then taste a noodle and adjust with more salt or pepper. The flavors should pop bright and garlicky but still let the tuna shine through.
Plate and serve:
Divide among four plates sprinkle with extra parsley and set lemon wedges on the side for squeezing at the table.
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My dad started requesting this for his birthday dinner which surprised me since he usually wants something much more elaborate. But he told me sometimes the simplest flavors prepared with care hit harder than anything else.

Making It Your Own

I have tried adding capers which bring this braky punch that makes everything feel more coastal and a handful of cherry tomatoes burst in the heat and create these little pockets of sweetness that balance the lemon perfectly.

Wine Pairings

A crisp Pinot Grigio or Sauvignon Blanc cuts through the oil and echoes the citrus but honestly an icy dry rosé works beautifully too especially if you have added those red pepper flakes.

Leftovers and Storage

This keeps surprisingly well in the fridge for a day or two though the pasta will drink up the sauce as it sits. Revive it with a splash of olive oil and squeeze of fresh lemon before serving.

  • The texture is best freshly made but leftovers still make an excellent desk lunch
  • If meal prepping cook pasta slightly more al dente than usual since it will soften in the fridge
  • Avoid freezing the pasta changes texture dramatically and the tuna quality suffers
Freshly plated Lemon-Garlic Tuna Spaghetti: A close-up view of the tender spaghetti and tuna. Save
Freshly plated Lemon-Garlic Tuna Spaghetti: A close-up view of the tender spaghetti and tuna. | fluxbaker.com

Sometimes the most unassuming recipes become the ones you return to again and again not because they are impressive but because they just work every single time.

Recipe FAQ

How do I achieve the perfect al dente spaghetti?

Cook the spaghetti in boiling salted water according to the package, usually 8-10 minutes, testing a minute before the time to ensure firmness with a slight bite.

Can I use fresh tuna instead of canned tuna?

Yes, fresh tuna can be lightly seared and flaked for a more delicate texture, though canned tuna offers convenience and consistent flavor.

What can I add to enhance the sauce's richness?

Incorporate capers or halved cherry tomatoes into the sauce for added depth and a pop of freshness that complements the lemon and garlic.

Is crushed red pepper flakes necessary for this dish?

No, they are optional but provide a subtle heat that balances the citrus and fish flavors well.

How do I prevent the sauce from becoming too dry?

Use reserved pasta cooking water to slowly loosen the tuna and lemon mixture, ensuring the sauce clings lightly to the spaghetti.

Lemon Garlic Tuna Spaghetti

Spaghetti combined with tuna, lemon zest, and garlic for a flavorful, easy weeknight dish.

Prep Duration
10 min
Cook Duration
15 min
Overall Time
25 min
Created by Sophia Brown


Skill Level Easy

Cuisine Italian

Makes 4 Number of Servings

Diet Preferences No Dairy

What You'll Need

Pasta

01 14 oz dried spaghetti

Sauce

01 2 tablespoons olive oil
02 3 cloves garlic, thinly sliced
03 1 lemon, zested and juiced
04 2 cans (5.6 oz each) tuna in olive oil, drained and flaked
05 1/2 teaspoon 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 Steps

Step 01

Cook Spaghetti: Bring a large pot of salted water to a boil. Cook spaghetti according to package directions until al dente. Reserve 1/4 cup of pasta cooking water, then drain the pasta.

Step 02

Sauté Garlic: Heat olive oil in a large skillet over medium heat. Add sliced garlic and cook for 1 to 2 minutes until fragrant without browning.

Step 03

Combine Tuna and Aromatics: Add flaked tuna to the skillet and gently break apart 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

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

Step 05

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

Step 06

Serve: Portion onto plates, garnish with extra parsley, and serve with lemon wedges.

Gear Needed

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

Allergy Details

Review all components for allergens. If unsure, talk to a healthcare provider.
  • Contains fish (tuna) and gluten (spaghetti).
  • Check pasta packaging for egg or wheat allergens if gluten-sensitive.

Per Serving Nutrition Details

Details here are for information—don’t use as medical advice.
  • Calorie Count: 480
  • Fats: 14 g
  • Carbohydrates: 62 g
  • Proteins: 28 g