Lemon Garlic Chicken Spaghetti Squash

Featured in: Sunday Dinner Plates

This vibrant main dish combines succulent lemon-garlic chicken with roasted spaghetti squash for a lighter, gluten-free alternative to traditional pasta. Chicken breasts are seasoned with fresh lemon zest, minced garlic, and oregano, then seared until golden and finished with bright lemon juice and fresh parsley. Meanwhile, halved spaghetti squash roasts until tender, creating delicate strands that form the perfect base. The dish comes together in just over an hour and serves four, making it ideal for weeknight dinners or meal prep. A generous topping of Parmesan cheese adds savory depth, while optional red pepper flakes provide a subtle heat.

Updated on Tue, 20 Jan 2026 11:14:00 GMT
Roasted spaghetti squash strands topped with tender lemon garlic chicken and a sprinkle of Parmesan cheese, a vibrant and healthy gluten-free dinner. Save to Pinterest
Roasted spaghetti squash strands topped with tender lemon garlic chicken and a sprinkle of Parmesan cheese, a vibrant and healthy gluten-free dinner. | recipesforevers.com

The first time I served this to my family, my skeptical teenager asked why we were eating pasta made from vegetables. By the end of dinner, she was already asking when I could make it again. That quiet victory still makes me smile every time I pull a squash from the oven.

I discovered this during a month-long experiment with grain-free cooking, expecting to feel deprived. Instead, I found myself looking forward to the way the squash strands catch every drop of that garlicky pan sauce. Now it is a regular rotation precisely because it never feels like a compromise.

Ingredients

  • 1 large spaghetti squash: Pick one that feels heavy for its size with a hard, unblemished shell
  • 1 tbsp olive oil: This helps the squash caramelize while roasting
  • ½ tsp kosher salt: Essential for drawing out the squashs subtle sweetness
  • ¼ tsp black pepper: Freshly cracked makes a noticeable difference
  • 1 lb boneless skinless chicken breasts: Cut into uniform pieces so everything cooks evenly
  • 2 tbsp olive oil: Needed for a proper golden sear on the chicken
  • 4 cloves garlic: Do not be shy here, garlic is the backbone of the dish
  • 1 lemon: Both zest and juice create layers of bright flavor
  • ½ tsp dried oregano: Adds an earthy note that grounds the citrus
  • 2 tbsp fresh parsley: Brings a pop of color and fresh flavor
  • ½ cup freshly grated Parmesan cheese: The salty finish that ties everything together

Instructions

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Roast the squash:
Preheat your oven to 400°F, halve the squash lengthwise, and scoop out those seeds. Rub the cut sides with olive oil and season generously before placing cut-side down on parchment paper. Let it roast for 40 to 45 minutes until a fork slides through the flesh like butter.
Season the chicken:
While the squash works, toss your chicken pieces with salt, pepper, oregano, and half the lemon zest. Let it sit at room temperature, this helps the chicken cook more evenly.
Sear the chicken:
Heat 2 tablespoons olive oil in a large skillet over medium-high heat until it shimmers. Add the chicken in a single layer and let it develop a golden crust before stirring, about 6 to 8 minutes total.
Build the sauce:
Add the minced garlic to the pan and cook just until fragrant, about 1 minute. Stir in the remaining lemon zest, all the lemon juice, and the chopped parsley, then let it bubble for 1 to 2 minutes.
Assemble the bowls:
Scrape the roasted squash into strands with a fork, divide among plates, and top with that lemon garlic chicken. Finish with Parmesan and extra parsley, then watch people suddenly become interested in vegetable pasta.
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Juicy bites of lemon garlic chicken served over golden roasted spaghetti squash, garnished with fresh parsley and ready for a light weeknight meal. Save to Pinterest
Juicy bites of lemon garlic chicken served over golden roasted spaghetti squash, garnished with fresh parsley and ready for a light weeknight meal. | recipesforevers.com

This dish became a unexpected favorite during a busy fall when I was cooking for a friend recovering from surgery. Something about the bright flavors and nourishing feel made it feel like medicine in the best possible way.

Making It Ahead

You can roast the squash up to three days in advance and keep it in the refrigerator. When you are ready to eat, just scrape the strands and rewarm gently while you make the chicken.

Customizing the Flavors

I have learned that a pinch of red pepper flakes completely transforms this into something entirely different. You can also swap thyme for the oregano when you want a more melancholy, wintery vibe.

Serving Suggestions

This stands alone beautifully as a complete meal, but sometimes I serve it alongside a simple green salad dressed with nothing but olive oil and more lemon juice. The contrast between warm squash and crisp greens is exactly what dinner needs.

  • Keep extra lemon wedges at the table for those who love acidity
  • A glass of cold white wine makes this feel like a restaurant meal
  • Save any leftover chicken mixture for breakfast the next day
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Fork-tender spaghetti squash topped with savory lemon garlic chicken and melted Parmesan, an easy and flavorful one-pan family dinner idea. Save to Pinterest
Fork-tender spaghetti squash topped with savory lemon garlic chicken and melted Parmesan, an easy and flavorful one-pan family dinner idea. | recipesforevers.com

Sometimes the simplest ingredients cooked with care create the most lasting memories around the table.

Recipe FAQs

Can I prepare this dish ahead of time?

Yes, you can roast the spaghetti squash and cook the chicken separately up to 2 days ahead. Store both in airtight containers in the refrigerator. Gently reheat the chicken in a skillet with a splash of lemon juice, then assemble just before serving to maintain the best texture and flavor.

What's the best way to roast spaghetti squash?

Cut the squash lengthwise, scoop out seeds, brush with olive oil, season with salt and pepper, and place cut-side down on a parchment-lined baking sheet. Roast at 400°F for 40-45 minutes until the flesh is tender. The strands should separate easily with a fork when ready.

Can I substitute the chicken?

Absolutely. Use boneless chicken thighs for juicier results, or shredded rotisserie chicken for convenience. You can also swap with shrimp, turkey breast, or plant-based protein for different flavor profiles while maintaining the same cooking technique.

How do I make this dairy-free?

Simply omit the Parmesan cheese entirely, or use a dairy-free alternative like nutritional yeast for a savory umami flavor. The dish remains delicious and satisfying without cheese, as the bright lemon and garlic provide plenty of flavor.

What wine pairs best with this dish?

A crisp Sauvignon Blanc complements the bright, citrusy flavors beautifully. Alternatively, try a dry Pinot Grigio or light Albariño. The acidity in these wines cuts through the richness of the olive oil and Parmesan while enhancing the fresh lemon notes.

How do I store leftovers?

Keep the chicken and spaghetti squash in separate airtight containers in the refrigerator for up to 3 days. Reheat gently before serving, and add fresh Parmesan and parsley after reheating. You can also freeze components separately for up to one month.

Lemon Garlic Chicken Spaghetti Squash

Tender lemon-garlic chicken paired with roasted spaghetti squash strands and Parmesan cheese. Light, satisfying, and gluten-free.

Prep Duration
20 minutes
Time to Cook
45 minutes
Complete Duration
65 minutes

Recipe Type Sunday Dinner Plates

Complexity Medium

Cuisine American

Makes 4 Portions

Dietary Info Without Gluten, Reduced Carb

What You Need

Spaghetti Squash

01 1 large spaghetti squash, approximately 3 pounds
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

Directions

Step 01

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

Step 02

Cook squash until tender: Roast for 40 to 45 minutes, until the flesh is tender and strands separate easily with a fork. Remove from oven and set aside to cool slightly.

Step 03

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

Step 04

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

Step 05

Infuse garlic aromatics: Add the minced garlic to the skillet and cook for 1 minute until fragrant.

Step 06

Finish lemon garlic sauce: Stir in the remaining lemon zest, lemon juice, and chopped parsley. Cook for 1 to 2 minutes, then remove from heat.

Step 07

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

Step 08

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

Step 09

Garnish and serve: Sprinkle each plate with Parmesan cheese and additional fresh parsley. Serve with lemon wedges on the side if desired.

Essential Tools

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

Allergy Details

Be sure to check every item for allergens. If uncertain, talk with a healthcare provider.
  • Contains dairy from Parmesan cheese
  • Verify all packaged ingredients for potential gluten cross-contamination
  • Check Parmesan labels for possible allergens from processing facilities

Nutrition per serving

Nutrition details are for your reference only. Always speak with a professional for medical concerns.
  • Caloric Content: 335
  • Total Fat: 15 grams
  • Carbohydrates: 20 grams
  • Proteins: 32 grams