Lemon Garlic Chicken Spaghetti Squash

Featured in: Weeknight Dinners

This vibrant lemon garlic chicken pairs perfectly with roasted spaghetti squash for a gluten-free main course that's both healthy and satisfying. Chicken pieces are seasoned with oregano and fresh lemon zest, then sautéed until golden before combining with bright lemon juice and garlic. The spaghetti squash is roasted until tender, creating delicate strands that capture the pan sauce beautifully. A generous sprinkle of Parmesan and fresh parsley finishes the dish. Ready in just over an hour with minimal prep work.

Updated on Tue, 20 Jan 2026 16:37:00 GMT
Tender roasted spaghetti squash strands topped with juicy lemon garlic chicken and a sprinkle of Parmesan cheese. Pin it
Tender roasted spaghetti squash strands topped with juicy lemon garlic chicken and a sprinkle of Parmesan cheese. | purposepan.com

The first time I served this to my skeptical father-in-law, who thinks vegetables are just decoration, he actually went back for seconds. That moment when someone realizes healthy food can taste incredible is pretty special.

My daughter helped me scrape the squash into strands last Tuesday, and she kept calling it pumpkin spaghetti. Now she asks for the noodle pumpkin every week.

Ingredients

  • 1 large spaghetti squash: Look for one that feels heavy for its size with a hard, unblemished skin. The roasting time is worth it for those naturally sweet strands.
  • 1 lb boneless skinless chicken breasts: Cutting into bite-sized pieces helps them cook evenly and absorb more of that lemon garlic flavor.
  • 4 cloves garlic: Do not skimp here. The garlic creates the aromatic foundation that makes this dish sing.
  • 1 lemon: Both zest and juice are essential. The zest brings concentrated citrus oils while the juice adds bright acidity.
  • ½ cup freshly grated Parmesan cheese: The salty, nutty finish ties everything together and adds that umami depth.

Instructions

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Roast the spaghetti squash:
Preheat your oven to 400°F, halve the squash lengthwise, scoop out seeds, and drizzle with olive oil. Season with salt and pepper, place cut-side down on parchment, and roast for 40 to 45 minutes until tender.
Season and cook the chicken:
While squash roasts, toss chicken pieces with salt, pepper, oregano, and half the lemon zest. Heat 2 tbsp olive oil in a large skillet over medium-high heat, then cook chicken until golden and cooked through, about 6 to 8 minutes.
Add the aromatic finish:
Stir in minced garlic and cook for just 1 minute until fragrant, then add remaining lemon zest, lemon juice, and chopped parsley. Cook for 1 to 2 minutes more before removing from heat.
Assemble and serve:
Scrape roasted squash into strands with a fork, divide among plates, top with lemon garlic chicken and pan sauce, then finish with Parmesan and extra parsley.
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A close-up view of golden-brown lemon garlic chicken served over bright yellow spaghetti squash, garnished with fresh parsley. Pin it
A close-up view of golden-brown lemon garlic chicken served over bright yellow spaghetti squash, garnished with fresh parsley. | purposepan.com

This recipe became our go-to after soccer practice when everyone is hungry but we still want something nourishing. The way the kitchen smells while it roasts is pure comfort.

Making It Your Own

Some nights I toss in a handful of spinach or arugula right at the end to wilt in the warm pan sauce. My sister adds crushed red pepper flakes whenever she needs a little kick.

Timing Is Everything

I learned to start the squash first, then prep everything else while it roasts. That way the chicken hits the pan just as the squash finishes, and everything comes together warm and ready.

Leftovers Actually Work

The flavors meld beautifully overnight, making it one of those rare dishes that might taste even better the next day for lunch. I pack the squash and chicken separately to keep textures perfect.

  • Store components in separate containers for up to 3 days
  • Reheat gently with a splash of water to refresh the sauce
  • The squash strands hold up surprisingly well
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Healthy gluten-free Lemon Garlic Chicken Spaghetti Squash plated with lemon wedges for a zesty finish. Pin it
Healthy gluten-free Lemon Garlic Chicken Spaghetti Squash plated with lemon wedges for a zesty finish. | purposepan.com

There is something deeply satisfying about a dish that tastes indulgent but leaves you feeling light and energized. This one earned a permanent spot in my weekly rotation.

Recipe FAQs

Can I prepare the spaghetti squash ahead of time?

Yes, you can roast the spaghetti squash 1-2 days in advance and store it in the refrigerator. Simply reheat gently before serving, or serve it at room temperature and top with warm lemon garlic chicken.

What's the best way to tell when spaghetti squash is done roasting?

The flesh should be tender and the strands should separate easily when tested with a fork. The skin may develop light browning on the edges. This typically takes 40-45 minutes at 400°F.

Can I use frozen chicken breast for this dish?

Yes, but ensure it's fully thawed before cutting and cooking. Thaw overnight in the refrigerator for best results. Frozen chicken may require slightly longer cooking time to ensure it's cooked through.

How do I make this dairy-free?

Simply omit the Parmesan cheese or substitute it with a plant-based alternative like nutritional yeast or dairy-free Parmesan. The dish remains flavorful with the lemon and garlic as the main seasonings.

What wine pairs well with this dish?

A crisp Sauvignon Blanc complements the bright lemon and garlic flavors beautifully. The acidity cuts through the richness of the chicken and olive oil, enhancing the overall meal.

Can I double this recipe for a larger group?

Absolutely. Simply double all ingredient amounts and adjust cooking times accordingly. You may need to use multiple baking sheets for the squash or cook the chicken in batches to ensure even cooking.

Lemon Garlic Chicken Spaghetti Squash

Tender lemon-garlic chicken atop roasted spaghetti squash strands, finished with Parmesan for a light yet satisfying meal.

Prep time
20 minutes
Cook time
45 minutes
Total duration
65 minutes
Author Amelia Cook


Skill Level Medium

Cuisine American

Portions 4 Serving size

Diet Information No Gluten, Low Carb

What You Need

Spaghetti Squash

01 1 large spaghetti squash, approximately 3 lbs
02 1 tablespoon olive oil
03 ½ teaspoon kosher salt
04 ¼ teaspoon black pepper

Lemon Garlic Chicken

01 1 pound boneless skinless chicken breasts, cut into bite-sized pieces
02 2 tablespoons olive oil
03 4 cloves garlic, minced
04 1 lemon, zested and juiced
05 ½ teaspoon dried oregano
06 ½ teaspoon salt
07 ¼ teaspoon black pepper
08 2 tablespoons fresh parsley, chopped

Serving

01 ½ cup freshly grated Parmesan cheese
02 Extra lemon wedges, optional
03 Fresh parsley for garnish

Step-by-Step Guide

Step 01

Prepare Spaghetti Squash: Preheat oven to 400°F. Halve spaghetti squash lengthwise and scoop out seeds. Drizzle cut sides with 1 tablespoon olive oil, then season with ½ teaspoon salt and ¼ teaspoon pepper. Place cut-side down on parchment-lined baking sheet.

Step 02

Roast Squash: Roast for 40 to 45 minutes until flesh is tender and strands separate easily with a fork. Set aside to cool slightly.

Step 03

Season Chicken: While squash roasts, season chicken pieces with ½ teaspoon salt, ¼ teaspoon pepper, ½ teaspoon oregano, and half the lemon zest.

Step 04

Cook Chicken: Heat 2 tablespoons olive oil in large skillet over medium-high heat. Add chicken and cook, stirring occasionally, until golden and cooked through, approximately 6 to 8 minutes.

Step 05

Add Garlic: Add minced garlic to skillet and cook for 1 minute until fragrant.

Step 06

Finish Chicken Sauce: Stir in remaining lemon zest, lemon juice, and 2 tablespoons chopped parsley. Cook for 1 to 2 minutes, then remove from heat.

Step 07

Shred Squash: Once squash is cool enough to handle, use a fork to scrape flesh into spaghetti-like strands.

Step 08

Plate Dish: Divide squash strands among plates. Top each portion with lemon garlic chicken and pan sauce.

Step 09

Garnish and Serve: Sprinkle with ½ cup Parmesan cheese and extra parsley. Serve with lemon wedges if desired.

What You'll Need

  • Baking sheet
  • Parchment paper
  • Chef's knife
  • Large skillet
  • Cutting board
  • Mixing bowls
  • Forks

Allergy List

Review all items for allergens and talk to a medical expert if you're unsure.
  • Contains dairy from Parmesan cheese
  • Possible cross-contamination allergens in processed ingredients, verify Parmesan labels

Nutrition details (per portion)

Nutrition details are just for your reference and shouldn't substitute a medical consultation.
  • Calories: 335
  • Fat content: 15 grams
  • Carbohydrates: 20 grams
  • Protein: 32 grams