Keto Zucchini Pasta with Creamy Pesto Sauce

This dish transforms humble zucchini into a hearty keto zucchini pasta alternative that embraces the Keto diet’s low-carb, high-fat philosophy while still delivering a satisfying and flavorful meal with only 7g of carbs.

By combining fresh, spiralized zucchini with a rich, creamy pesto sauce, you get a dish that’s both visually delightful and mouthwateringly indulgent. Below, you’ll find every detail from quantities to nutrition facts, ensuring that you can confidently recreate this recipe in your kitchen.


Keto Zucchini Pasta Ingredients

For the Pasta:

  • Zucchini: 4 medium (approximately 800 g)
  • Salt: 1 teaspoon (for sprinkling over zucchini, helps remove excess water )
  • Olive Oil: 1 tablespoon (for sautéing, optional for extra flavor)

For the Creamy Pesto Sauce:

  • Basil Leaves: 1 cup (packed)
  • Pine Nuts: 1/3 cup (approximately 50 g)
  • Garlic: 2 cloves, minced
  • Extra Virgin Olive Oil: 1/4 cup (4 tablespoons)
  • Heavy Cream: 1/2 cup (120 mL; use full-fat cream for extra richness)
  • Grated Parmesan Cheese: 1/4 cup (about 25 g)
  • Lemon Juice: 1 tablespoon (freshly squeezed for brightness)
  • Salt and Freshly Ground Black Pepper: To taste

Optional Garnishes:

  • Cherry Tomatoes: 1/2 cup, halved
  • Extra Parmesan Cheese: A sprinkle on top
  • Fresh Basil Leaves: A few for decorative flair

Step-by-Step Instructions

1. Prepare the Keto Zucchini Pasta

  1. Spiralize the Zucchinis:
  • Using a spiralizer, turn your 4 medium zucchinis into noodles. You can also use a julienne peeler if you don’t have a spiralizer.
  1. Salt and Drain:
  • Place the zucchini noodles in a colander, sprinkle with 1 teaspoon of salt, and let them sit for about 15 minutes.
  • This step helps draw out excess water, ensuring your pasta stays firm and not too watery.
  1. Pat Dry:
  • Use paper towels to gently squeeze and pat down the zucchini noodles, removing as much moisture as possible.

2. Make the Creamy Pesto Sauce

  1. Blend the Base:
  • In a food processor or high-speed blender, add 1 cup of basil leaves, 1/3 cup of pine nuts, and 2 cloves of minced garlic. Pulse until roughly chopped.
  1. Add Olive Oil:
  • With the processor running, slowly drizzle in the 1/4 cup extra virgin olive oil until the mixture becomes a coarse paste.
  1. Emulsify the Cream:
  • Transfer the basil mixture to a small saucepan over low heat. Stir in the 1/2 cup heavy cream and let it warm for about 2 minutes.
  • Add 1/4 cup grated Parmesan cheese and 1 tablespoon of lemon juice. Stir until the sauce is smooth and creamy.
  1. Season:
  • Taste the sauce and season with salt and freshly ground black pepper to your preference.
  • Remove from heat once it reaches your desired consistency.

3. Combine Keto Zucchini Pasta and Sauce

  1. Warm the Keto Zucchini Pasta:
  • Optionally, in a large skillet, add 1 tablespoon of olive oil over medium heat. Quickly sauté the zucchini noodles for 2-3 minutes just to warm them up (avoid overcooking to preserve their crunch).
  1. Mix Together:
  • Pour the warm creamy pesto sauce over the zucchini noodles and gently toss until well incorporated.
  1. Garnish and Serve:
  • If desired, sprinkle with cherry tomatoes, an extra pinch of Parmesan, and fresh basil leaves before serving.

4. Presentation Tips

  • Plate Effectively:
    Serve this dish in shallow bowls to highlight the colorful zucchini noodles and vibrant green sauce.
  • Add Texture:
    Consider adding toasted pine nuts or even a few slices of avocado on top for an extra dose of healthy fats.
  • Serve Warm:
    This recipe is best served immediately while the sauce is warm and the zucchini noodles maintain their bite.

Nutrition Facts (Per Serving)

(Based on 2 servings; estimated values)

NutrientAmount per Serving
Calories~690 kcal
Total Fat~62 g
Saturated Fat~25 g
Cholesterol~150 mg
Sodium~350 mg
Total Carbohydrates~10 g
Dietary Fiber~3 g
Net Carbs~7 g
Protein~13 g

Note: These nutrition facts are approximate and will vary based on specific brands and ingredient sizes used. Adjustments in ingredients such as switching heavy cream for coconut cream or altering the amount of Parmesan can modify these values.

keto zucchini pasta

Detailed Explanation and Tips

The Role of Each Ingredient

  • Zucchini:
    Zucchini serves as an ideal low-carb pasta substitute due to its high water content and minimal net carbs, fitting perfectly within the keto framework. Its neutral flavor allows the creamy pesto sauce to shine, and spiralizing creates an appealing, pasta-like texture.
  • Basil & Pine Nuts:
    The combination of basil and pine nuts is a traditional pesto base that offers a rich, aromatic flavor profile. Pine nuts add a delightful crunch and healthy fats, which are crucial on the keto diet.
  • Garlic:
    Garlic infuses the dish with a robust flavor, supporting the overall taste profile without adding significant carbs.
  • Olive Oil & Heavy Cream:
    These fats are key to achieving a creamy, luxurious sauce. Olive oil is rich in monounsaturated fats that promote heart health, while heavy cream boosts the dish’s richness and satiating quality.
  • Parmesan Cheese:
    Parmesan adds a salty, tangy depth to the sauce while providing protein and essential nutrients. It also helps thicken the sauce, making it cling to the zucchini noodles.

Cooking Techniques for Best Results

  1. Avoid Sogginess:
    Salting and drying the keto zucchini pasta is critical. This step prevents your dish from becoming watery, ensuring that every bite has a consistent texture.
  2. Gentle Heat for the Sauce:
    When creating the creamy sauce, keep the heat low to avoid curdling the cream or burning the garlic. The gentle warming process allows the flavors to meld perfectly.
  3. Quick Sauté:
    If you choose to warm the zucchini noodles in a skillet, do so only briefly. Overcooking can lead to a mushy texture, detracting from the dish’s appeal.
  4. Layering Flavors:
    Incorporate ingredients at different stages (raw basil and lightly warmed cream) to provide contrasting textures and fresh bursts of flavor throughout the dish.

Enhancements & Variations

  • Alternative Proteins:
    For added protein, consider mixing in grilled chicken, shrimp, or even a few crumbled hard-boiled eggs. This can transform the dish from a side to a satisfying main course.
  • Vegan or Dairy-Free Options:
    Replace heavy cream with full-fat coconut cream and Parmesan with nutritional yeast to keep the dish vegan while maintaining the creamy texture.
  • Extra Vegetables:
    Enhance the color and nutritional profile by adding low-carb vegetables like spinach or arugula. Toss these in at the very end to preserve their fresh flavors and textures.
  • Spice It Up:
    For those who enjoy a kick, add a pinch of red pepper flakes into the pesto sauce during blending. This adds a subtle heat without overpowering the basil’s freshness.

Time Management and Serving Suggestions

  • Prep Time:
    The entire prep process (spiralizing, salting, and draining zucchini) takes about 20 minutes.
  • Cooking Time:
    The sauce requires about 10 minutes of attention, while warming the zucchini can be done concurrently in 2-3 minutes.
  • Total Time:
    Expect to invest roughly 30-35 minutes from start to finish.
  • Meal Pairing:
    Serve with a light, crisp salad (e.g., mixed greens with lemon vinaigrette) to balance the richness of the pasta. A glass of dry white wine or sparkling water with lemon can also complement the meal beautifully.

Final Thoughts

This Keto Zucchini Pasta with Creamy Pesto Sauce is more than just another recipe—it’s a celebration of flavors that respect the principles of Keto while ensuring every bite is bursting with nutrients and taste. The dish embraces the uniqueness of each ingredient: the spiralized zucchini acts as a versatile canvas, the basil and pine nuts deliver punchy, herbaceous notes, and the creamy sauce ties everything together in a decadent, yet health-conscious manner.

By following these detailed instructions and tips, you’ll create a restaurant-quality meal in your own kitchen. The thoughtfully listed nutrition facts help you keep track of your macros without sacrificing flavor or satisfaction. Whether you’re a long-time Keto enthusiast or just dipping your toes into low-carb living, this dish is the perfect blend of indulgence and nourishment.

Remember, small tweaks and experimentations can further personalize this recipe to your taste preferences—feel free to adjust flavors, ingredients, or textures based on what makes your Keto journey both enjoyable and sustainable.

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