When it comes to a delightful and satisfying meal, few dishes can compare to the charm of Salmon Spaghetti with Lemon Garlic Sauce. This dish is not only a feast for the eyes but also a celebration of flavors that come together beautifully. The combination of succulent salmon, zesty lemon, and aromatic garlic results in a pasta dish that is both refreshing and indulgent. Whether you’re preparing a cozy dinner for two or entertaining guests, this recipe is sure to impress. Let’s dive into what makes this dish so special.
Why This Salmon Spaghetti with Lemon Garlic Sauce Stands Out

The allure of Salmon Spaghetti with Lemon Garlic Sauce lies in its perfect balance of flavors. The bright acidity of the lemon juice enhances the richness of the salmon, while the minced garlic adds a robust depth that elevates the entire dish. The toasted walnuts provide a delightful crunch, and the parmesan cheese gives it a creamy, savory finish that ties everything together. This dish is not only delicious but also quick to prepare, making it an ideal choice for busy weeknights or special occasions alike.
What Goes In
- 2 lemons, squeezed for juice and zest
- 1 clove garlic, minced
- 2 ounces toasted walnuts
- 1/3 cup grated parmesan cheese
- 13 ounces spaghetti
- 1/3 cup olive oil
- 2 tablespoons baby capers
- 2 slices sourdough bread, cut into bite-sized cubes
- 1 pound skinless salmon fillets, cut into 1-inch thick bite-sized pieces, seasoned with salt and ground black pepper
- 2 3/4 tablespoons unsalted butter
- 2 ounces watercress leaves
Equipment at a Glance
- Large pot for boiling spaghetti
- Skillet for cooking salmon and sauce
- Mixing bowl for combining ingredients
- Spatula or wooden spoon for stirring
- Knife and cutting board for prepping ingredients
Salmon Spaghetti with Lemon Garlic Sauce Made Stepwise

Step 1: Prepare the Ingredients
Start by gathering all your ingredients. Zest and juice the lemons, mince the garlic, and chop the toasted walnuts. These prep steps will make the cooking process smooth and efficient.
Step 2: Cook the Spaghetti
In a large pot, bring salted water to a boil. Add the spaghetti and cook according to package instructions until al dente. Reserve about 1 cup of pasta water before draining the spaghetti. This will help to create a luscious sauce later on.
Step 3: Sauté the Salmon
In a large skillet, heat 2 tablespoons of olive oil over medium heat. Add the salmon pieces, seasoned with salt and pepper. Cook for about 4-5 minutes, turning occasionally until the salmon is golden and cooked through. Remove the salmon from the skillet and set aside.
Step 4: Create the Lemon Garlic Sauce
In the same skillet, add the remaining olive oil and the minced garlic. Sauté for about 30 seconds until fragrant. Be careful not to burn the garlic, as it can turn bitter. Add the lemon juice, zest, and capers, stirring to combine.
Step 5: Combine Everything
Add the drained spaghetti to the skillet with the lemon garlic sauce. Toss to coat the pasta evenly. If the sauce seems too dry, add a bit of the reserved pasta water to achieve your desired consistency.
Step 6: Finish with Salmon and Walnuts
Gently fold the cooked salmon and toasted walnuts into the pasta. Add the unsalted butter and grated parmesan cheese, stirring until everything is well combined and the butter has melted.
Step 7: Serve and Garnish
Plate the Salmon Spaghetti with Lemon Garlic Sauce and top with fresh watercress leaves for a pop of color and flavor. You can also sprinkle additional parmesan cheese if desired.
Better Choices & Swaps

- For a lighter alternative, you can substitute whole wheat spaghetti.
- Instead of walnuts, try pine nuts or almonds for a different crunch.
- If you prefer a creamier sauce, consider adding a splash of heavy cream or a dollop of crème fraîche.
- For a gluten-free option, use gluten-free pasta.
Mistakes Even Pros Make
Even seasoned cooks can stumble when preparing Salmon Spaghetti with Lemon Garlic Sauce. Here are a few common pitfalls:
- Overcooking the spaghetti can lead to a mushy texture. Always check for al dente doneness.
- Burning the garlic is a quick way to ruin the sauce. Keep an eye on it and sauté it just until fragrant.
- Not reserving enough pasta water can result in a dry dish. Always err on the side of caution and save more than you think you’ll need.
- Forgetting to season the salmon properly can lead to bland bites. Don’t skip the salt and pepper!
Best Ways to Store
Leftover Salmon Spaghetti with Lemon Garlic Sauce can be stored in an airtight container in the refrigerator for up to 2 days. To reheat, simply warm it on the stovetop over low heat, adding a splash of olive oil or reserved pasta water to help rehydrate the sauce. Avoid using the microwave, as it can make the pasta rubbery.
Popular Questions
Can I use frozen salmon for this recipe?
Yes, frozen salmon can be used. Just ensure it is completely thawed before cooking to achieve even cooking results.
What can I serve with Salmon Spaghetti?
A simple green salad or roasted vegetables pairs beautifully with this dish, adding freshness and color to your meal.
Can I make this dish ahead of time?
While it’s best enjoyed fresh, you can prep the ingredients in advance. Cook the spaghetti and salmon separately and combine them just before serving to maintain the best texture.
Is there a vegetarian option for this dish?
Absolutely! You can replace the salmon with sautéed mushrooms or grilled zucchini for a hearty vegetarian alternative, keeping the rest of the recipe the same.
One Pan, More Ideas
Next Steps
Now that you have the recipe for Salmon Spaghetti with Lemon Garlic Sauce under your belt, it’s time to get cooking! Gather your ingredients, put on your favorite playlist, and enjoy the process of creating this delicious meal. Remember to taste as you go, making adjustments to suit your palate. Whether you’re cooking for yourself or sharing with loved ones, this dish is bound to become a staple in your recipe repertoire.
With its vibrant flavors and easy preparation, Salmon Spaghetti with Lemon Garlic Sauce is not just a meal; it’s an experience. Enjoy every bite and the satisfaction of having created something truly special. Happy cooking!

Salmon Spaghetti with Lemon Garlic Sauce
Equipment
- Large pot for boiling spaghetti
- Skillet for cooking salmon and sauce
- Mixing bowl for combining ingredients
- Spatula or wooden spoon for stirring
- Knife and cutting board for prepping ingredients
Ingredients
- 2 lemons squeezed for juice and zest
- 1 clove garlic minced
- 2 ounces toasted walnuts
- 1/3 cup grated parmesan cheese
- 13 ounces spaghetti
- 1/3 cup olive oil
- 2 tablespoons baby capers
- 2 slices sourdough bread cut into bite-sized cubes
- 1 pound skinless salmon fillets cut into 1-inch thick bite-sized pieces, seasoned with salt and ground black pepper
- 2 3/4 tablespoons unsalted butter
- 2 ounces watercress leaves
Instructions
Step 1: Prepare the Ingredients
- Start by gathering all your ingredients. Zest and juice the lemons, mince the garlic, and chop the toasted walnuts. These prep steps will make the cooking process smooth and efficient.
Step 2: Cook the Spaghetti
- In a large pot, bring salted water to a boil. Add the spaghetti and cook according to package instructions until al dente. Reserve about 1 cup of pasta water before draining the spaghetti. This will help to create a luscious sauce later on.
Step 3: Sauté the Salmon
- In a large skillet, heat 2 tablespoons of olive oil over medium heat. Add the salmon pieces, seasoned with salt and pepper. Cook for about 4-5 minutes, turning occasionally until the salmon is golden and cooked through. Remove the salmon from the skillet and set aside.
Step 4: Create the Lemon Garlic Sauce
- In the same skillet, add the remaining olive oil and the minced garlic. Sauté for about 30 seconds until fragrant. Be careful not to burn the garlic, as it can turn bitter. Add the lemon juice, zest, and capers, stirring to combine.
Step 5: Combine Everything
- Add the drained spaghetti to the skillet with the lemon garlic sauce. Toss to coat the pasta evenly. If the sauce seems too dry, add a bit of the reserved pasta water to achieve your desired consistency.
Step 6: Finish with Salmon and Walnuts
- Gently fold the cooked salmon and toasted walnuts into the pasta. Add the unsalted butter and grated parmesan cheese, stirring until everything is well combined and the butter has melted.
Step 7: Serve and Garnish
- Plate the Salmon Spaghetti with Lemon Garlic Sauce and top with fresh watercress leaves for a pop of color and flavor. You can also sprinkle additional parmesan cheese if desired.
Notes
- Reserve pasta water to adjust sauce consistency for a silky finish.
- Do not overcook garlic to avoid bitterness in the sauce.
- Store leftovers in an airtight container in the fridge for up to 2 days.
- Use frozen salmon thawed completely before cooking for best results.
- For variations, swap walnuts with pine nuts or almonds, or use whole wheat or gluten-free pasta.
