Vegan Lemon Garlic Pasta with Creamy Cashew Sauce & Roasted Asparagus

If you are searching for the ultimate easy weeknight meal, this Vegan Lemon Garlic Pasta is about to become your new go-to. It is the perfect balance of cozy comfort and fresh seasonal flavors. By using a simple one-pot method and a silky cashew-based sauce, you get all the richness of a traditional cream sauce without any of the dairy. Between the bright hit of citrus and the crunch of roasted asparagus, every bite feels like a celebration of spring.

Vegan Lemon Garlic Pasta with Creamy Cashew Sauce & Roasted Asparagus

The Flexi Vegan

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Prep Time 15 minutes mins

Cook Time 20 minutes mins

Total Time 35 minutes mins

Servings 4 servings

Ingredients

  

• 12 oz pasta (penne, fusilli, or linguine)
• 1 lb asparagus, trimmed and cut into 2-inch pieces
• 1 cup frozen sweet peas (no need to thaw)
• 1 cup raw cashews (soaked in hot water for 20–30 minutes, then drained)
• 3 cups low-sodium vegetable broth (plus extra as needed)
• 3–4 cloves garlic, minced
• Zest of 1 large lemon
• Juice of 1–2 lemons (about 3–4 tablespoons), to taste
• 2 tablespoons olive oil, divided
• 1 teaspoon onion powder
• 1/2 teaspoon crushed red pepper flakes (optional)
• Salt and black pepper, to taste
• Fresh parsley or basil, chopped (for garnish)
• Nutritional yeast or vegan Parmesan, to finish (optional)

Instructions

 

• Prep the cashews. Soak cashews in hot water for 20–30 minutes. Drain and set aside.
• Roast the asparagus. Heat oven to 425°F (220°C). Toss asparagus with 1 tablespoon olive oil, salt, and pepper. Roast on a sheet pan for 10–12 minutes until crisp-tender with a little char on the tips.
• Start the pasta. In a large pot, warm 1 tablespoon olive oil over medium heat. Add garlic and cook 30–60 seconds until fragrant. Add dry pasta and 3 cups vegetable broth. Bring to a simmer and cook, stirring often, until al dente, 9–11 minutes. Add small splashes of broth if needed to keep pasta just submerged.
• Blend the sauce. In a blender, combine soaked cashews, 1/2 cup hot water, onion powder, lemon zest, 2 tablespoons lemon juice, a pinch of salt, black pepper, and red pepper flakes if using. Blend until completely smooth and creamy.
• Add peas and sauce. When pasta is al dente and there’s still a little starchy liquid in the pot, stir in the peas. Pour in the cashew sauce and toss until everything is glossy and thickened, 1–2 minutes over low heat.
• Fold in asparagus. Add roasted asparagus and more lemon juice, salt, and pepper to taste. If the sauce gets too thick, loosen with a splash of hot water or broth.
• Finish and serve. Top with chopped herbs and nutritional yeast or vegan Parmesan if you like. Serve hot with extra lemon wedges.

Why This Recipe Works

• Cashew cream brings body and silkiness without heavy cream, keeping the dish rich but not heavy.
• Lemon and garlic cut through the richness, delivering balance and a bright, clean finish.
• Roasted asparagus and peas add texture and color, turning a simple pasta into a complete, veggie-packed meal.
• One-pot pasta technique means the noodles release starch into the cooking water, naturally thickening the sauce.
• Flexible and forgiving—swap veggies, adjust acidity, or add heat to suit your taste.

Ingredients

• 12 oz pasta (penne, fusilli, or linguine)
• 1 lb asparagus, trimmed and cut into 2-inch pieces
• 1 cup frozen sweet peas (no need to thaw)
• 1 cup raw cashews (soaked in hot water for 20–30 minutes, then drained)
• 3 cups low-sodium vegetable broth (plus extra as needed)
• 3–4 cloves garlic, minced
• Zest of 1 large lemon
• Juice of 1–2 lemons (about 3–4 tablespoons), to taste
• 2 tablespoons olive oil, divided
• 1 teaspoon onion powder
• 1/2 teaspoon crushed red pepper flakes (optional)
• Salt and black pepper, to taste
• Fresh parsley or basil, chopped (for garnish)
• Nutritional yeast or vegan Parmesan, to finish (optional)

How to Make It

1. Prep the cashews. Soak cashews in hot water for 20–30 minutes. Drain and set aside.
2. Roast the asparagus. Heat oven to 425°F (220°C).Toss asparagus with 1 tablespoon olive oil, salt, and pepper. Roast on a sheet pan for 10–12 minutes until crisp-tender with a little char on the tips.
3. Start the pasta. In a large pot, warm 1 tablespoon olive oil over medium heat. Add garlic and cook 30–60 seconds until fragrant.Add dry pasta and 3 cups vegetable broth. Bring to a simmer and cook, stirring often, until al dente, 9–11 minutes. Add small splashes of broth if needed to keep pasta just submerged.
4. Blend the sauce. In a blender, combine soaked cashews, 1/2 cup hot water, onion powder, lemon zest, 2 tablespoons lemon juice, a pinch of salt, black pepper, and red pepper flakes if using.Blend until completely smooth and creamy.
5. Add peas and sauce. When pasta is al dente and there’s still a little starchy liquid in the pot, stir in the peas. Pour in the cashew sauce and toss until everything is glossy and thickened, 1–2 minutes over low heat.
6. Fold in asparagus. Add roasted asparagus and more lemon juice, salt, and pepper to taste. If the sauce gets too thick, loosen with a splash of hot water or broth.
7. Finish and serve. Top with chopped herbs and nutritional yeast or vegan Parmesan if you like.Serve hot with extra lemon wedges.

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Keeping It Fresh

• Storage: Refrigerate leftovers in an airtight container for up to 3 days.
• Reheating: Warm gently on the stovetop with a splash of water or broth to re-silken the sauce. Microwave in short bursts, stirring between intervals.
• Make-ahead tip: Blend the cashew sauce up to 2 days in advance. Roast asparagus the day of for best texture.

Benefits of This Recipe

• Plant-powered creaminess: Cashews give you a luscious, dairy-free sauce with healthy fats.
• Weeknight ease: Minimal chopping, one pot, fast cleanup.
• Seasonal veggies: Asparagus and peas bring spring flavor, fiber, and color.
• Customizable: Works with gluten-free pasta, different greens, or extra protein like chickpeas.

Common Mistakes to Avoid

• Skipping the soak: Unsoaked cashews can leave your sauce grainy.A quick hot-water soak makes it silky.
• Overcooking the pasta: It will continue to cook as you stir in the sauce. Aim for just al dente.
• Letting the pot dry out: Keep a little starchy liquid in the pot so the sauce emulsifies smoothly.
• Under-seasoning: Taste and adjust salt, pepper, and lemon at the end for brightness and balance.

Variations You Can Try

• Green boost: Fold in baby spinach or kale in the last minute until just wilted.
• Protein add-ins: Stir in chickpeas, white beans, or pan-seared tofu cubes.
• Herb swap: Try dill, chives, or tarragon for a different spring vibe.
• Heat lovers: Add extra red pepper flakes or a spoon of Calabrian chili paste.
• Citrus twist: Add a little Meyer lemon juice for a softer, floral acidity.

FAQs

Can I use a different nut or make it nut-free?

Yes. Sunflower seeds or silken tofu can replace cashews.

The texture will be slightly different, so blend well and season generously.

Do I have to roast the asparagus?

No. You can sauté it in the pot before adding the pasta, then remove and fold it back in at the end. Roasting adds deeper flavor and a tender bite.

What pasta shape works best?

Short shapes like penne or fusilli hold sauce nicely, but linguine is great too.

Use gluten-free pasta if needed and watch the cook time closely.

Can I freeze this?

Freezing isn’t ideal. Cashew sauces can thicken and turn slightly grainy after thawing. It’s best enjoyed fresh or within a few days.

How do I make it extra lemony without turning it sour?

Add more lemon zest for aromatic brightness and finish with a small squeeze of juice at the table.

Balance with a pinch of salt.

Wrapping Up

I cannot wait for you to twirl your fork into a big bowl of this creamy goodness! It is proof that plant-based eating can be indulgent, simple, and totally satisfying all at once. Whether you are cooking for the family or just treating yourself to a fancy-feeling solo dinner, this recipe is a total sunshine-filled win. If you try it, be sure to let me know how it turned out or tag me in your photos. Happy cooking, friends!

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