This vibrant dish combines tender pan-seared chicken breasts with perfectly roasted spaghetti squash for a light yet satisfying meal. The zesty lemon sauce ties the elements together, providing a bright finish that cuts through the mild sweetness of the squash. It serves as an ideal weeknight dinner that feels sophisticated while remaining remarkably simple to prepare.

List of ingredients
- 1 large spaghetti squash
- 2 tbsp. olive oil (divided)
- Salt and pepper (to taste)
- 1/4 cup all-purpose flour
- 2 tsp. Italian seasoning
- 1 1/4 lb. chicken breasts (boneless/skinless)
- 1 tbsp. butter
- 3 garlic cloves (minced)
- 1 tbsp. fresh rosemary (chopped fine)
- 1 1/4 cup chicken broth
- 1 lemon
- 1/4 cup Parmesan cheese (grated)
step-by-step instructions
- Step: Preheat oven to 450 degrees. Cut spaghetti squash in half and scoop out seeds. Drizzle with 1 tbsp. olive oil and season with salt and pepper. Roast on a baking sheet for 50-60 minutes or until flesh is tender and can easily be poked with a fork.
- Step: Place flour and Italian seasoning in a shallow dish. Dredge chicken through flour mixture. Heat 1 tbsp. olive oil over medium-high heat. Sear chicken breast in pan, browning each side. Cook for about 3 minutes on each side. Place on plate and set aside.
- Step: Melt butter in the same skillet. Add garlic cloves and saute for about 30 seconds or until fragrant. Add broth, rosemary, and juice of half of the lemon. Add chicken back to skillet and simmer for at least 5 minutes or until chicken cooked thoroughly.
- Step: Once spaghetti squash finished roasting, scoop out flesh of squash. Top squash with chicken, pan sauce, and sprinkle with Parmesan cheese. Slice remaining lemon and serve with chicken.
Keys to perfectly roasted squash
Achieving the ideal strand texture
To avoid a mushy squash, it is critical to roast the vegetable cut-side down at a high temperature. This technique allows moisture to escape while encouraging the natural sugars to caramelize against the baking sheet. If you flip the squash during the final ten minutes, you can get a bit more browning on the strands for extra flavor.
Selecting the best squash
When shopping, choose a spaghetti squash that is uniform in color without any deep soft spots or mold near the stem. A smaller squash often has a tighter texture, while larger ones may be slightly more watery. If the squash feels hollow or light, it may have been stored for too long and lost its freshness.
Refining your pan sauce
Balancing the acidity
The lemon juice is the star of this sauce, but it needs the chicken broth to provide a savory backbone. If you find your sauce too tart, add an extra half tablespoon of butter at the very end to emulsify it and mellow the sharp edges of the citrus. Always taste your sauce before serving to ensure the seasoning levels are balanced to your preference.
Achieving the right consistency
The flour coating on the chicken serves a dual purpose: it crusts the meat and thickens the sauce as it braises. If you prefer a thicker, more syrupy consistency, remove the chicken once cooked and let the sauce simmer for an additional two to three minutes without the meat. This reduction process concentrates the flavors of the rosemary and garlic effectively.
Substitutions and adjustments
Replacing fresh herbs
If you do not have fresh rosemary on hand, you can substitute it with dried herbs, but you must reduce the amount significantly. Use only 1 teaspoon of dried rosemary, as dried herbs are more potent and can become bitter if used in equal measurements to fresh ones. You can also use fresh thyme or oregano if you prefer those flavor profiles.
Alternative proteins
While chicken breasts are standard, boneless chicken thighs also work exceptionally well for this recipe. Thighs are more forgiving and remain juicy even if they stay in the pan for a minute or two longer than the recipe suggests. Ensure you trim any excess visible fat before dredging in the flour for the best results.
Serving ideas and presentation
Pairing with complementary sides
Although the spaghetti squash is filling, this dish pairs well with a side of steamed asparagus or roasted broccoli tossed in olive oil. These green vegetables maintain a crisp texture that contrasts well with the soft, tender strands of the squash. For those who want more bulk, a simple side of toasted garlic bread can help soak up the remaining lemon-butter sauce from the plate.
Plating for dinner parties
To create an elegant presentation, use a large, shallow bowl for each serving. Place a generous nest of spaghetti squash in the center, drape the chicken breast over the top, and drizzle the sauce evenly over the entire dish. Garnishing with extra fresh rosemary needles and a thin wheel of lemon creates a professional look with minimal extra effort.
Common questions and troubleshooting
Why is my chicken dry?
Dry chicken usually results from overcooking the breasts in the initial searing phase or leaving them in the pan too long during the braise. Since the chicken finishes in the broth, aim for a light golden sear rather than a hard cook-through in the first step. Use a meat thermometer to ensure the center reaches 165 degrees Fahrenheit, then remove it from the heat immediately.
Can I prepare this in advance?
You can roast the spaghetti squash up to two days ahead of time and store it in an airtight container in the refrigerator. When you are ready to eat, simply scrape the strands and reheat them in a pan with a splash of water or in the microwave. The chicken is best prepared fresh, as the flour coating can become gummy if it sits in the sauce for too long.
How should I store leftovers?
Store any remaining chicken and squash separately if possible. If they are already mixed with the sauce, keep them in a sealed container in the refrigerator for up to three days. When reheating, do so gently over low heat on the stove, adding a tiny splash of chicken broth to loosen the sauce and prevent the squash from drying out.
Is there a way to make this gluten-free?
Yes, you can substitute the all-purpose flour with an equal amount of cornstarch or a gluten-free all-purpose flour blend. If using cornstarch, be aware that it thickens the sauce more quickly than wheat flour, so you may need to reduce the simmering time by a minute to keep the consistency smooth. The flavor will remain largely the same, ensuring a safe meal for those with gluten sensitivities.
Print
Braised Lemon Chicken with Spaghetti Squash
- Total Time: 70 minutes
- Yield: 4 servings 1x
- Diet: Low-carb
Description
A flavorful and satisfying meal featuring tender braised chicken breasts served over perfectly roasted spaghetti squash, brightened with fresh lemon and aromatic rosemary.
Ingredients
- 1 large spaghetti squash
- 2 tbsp. olive oil (divided)
- Salt and pepper (to taste)
- 1/4 cup all-purpose flour
- 2 tsp. Italian seasoning
- 1 1/4 lb. chicken breasts (boneless/skinless)
- 1 tbsp. butter
- 3 garlic cloves (minced)
- 1 tbsp. fresh rosemary (chopped fine)
- 1 1/4 cup chicken broth
- 1 lemon
- 1/4 cup Parmesan cheese (grated)
Instructions
- Step: Preheat oven to 450 degrees. Cut spaghetti squash in half and scoop out seeds. Drizzle with 1 tbsp. olive oil and season with salt and pepper. Roast on a baking sheet for 50-60 minutes or until flesh is tender and can easily be poked with a fork.
- Step: Place flour and Italian seasoning in a shallow dish. Dredge chicken through flour mixture. Heat 1 tbsp. olive oil over medium-high heat. Sear chicken breast in pan, browning each side. Cook for about 3 minutes on each side. Place on plate and set aside.
- Step: Melt butter in the same skillet. Add garlic cloves and saute for about 30 seconds or until fragrant. Add broth, rosemary, and juice of half of the lemon. Add chicken back to skillet and simmer for at least 5 minutes or until chicken cooked thoroughly.
- Step: Once spaghetti squash finished roasting, scoop out flesh of squash. Top squash with chicken, pan sauce, and sprinkle with Parmesan cheese. Slice remaining lemon and serve with chicken.
Notes
Ensure the chicken is fully cooked through by checking that the internal temperature reaches 165°F. The lemon provides a zesty finish, so feel free to adjust the amount of juice to your preference.
- Prep Time: 10 minutes
- Cook Time: 60 minutes
- Category: dinner
- Method: Braising
- Cuisine: American
Nutrition
- Serving Size: 1 serving
- Calories: 405 kcal
- Sugar: 7 g
- Sodium: 904 mg
- Fat: 18 g
- Saturated Fat: 5 g
- Unsaturated Fat: 10 g
- Trans Fat: 0.1 g
- Carbohydrates: 28 g
- Fiber: 5 g
- Protein: 35 g
- Cholesterol: 106 mg
Keywords: braised chicken, spaghetti squash, healthy dinner, lemon chicken, easy meal




