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Cheesy Garlic Parmesan Spinach Spaghetti Squash

Craving creamy, cheesy pasta without the carbs? Try this Cheesy Garlic Parmesan Spaghetti Squash! Loaded with spinach and smothered in a rich garlic-Parmesan sauce, this low-carb dish is packed with flavor and perfect for a hearty side or light main. Easy enough for weeknights!
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Course: Main Dish, Side Dish
Cuisine: American
Keyword: Cheesy Garlic Parmesan Spinach Spaghetti Squash
Prep Time: 10 minutes
Cook Time: 1 hour
Total Time: 1 hour 10 minutes
Servings: 4 servings

Notes

Ingredients:

  • 1 medium spaghetti squash (2-3 lbs)
  • 2.5 tbsp minced garlic
  • 1 tsp avocado or olive oil
  • 5 oz fresh spinach, chopped
  • ½ cup heavy cream
  • 1 tbsp cream cheese (optional but recommended)
  • ½ cup freshly grated Parmesan cheese (plus extra for topping)
  • Salt and pepper, to taste
  • Mozzarella (grated or sliced) for topping, to taste
 

Instructions:

1. Roast the Squash:

  • Preheat oven to 400°F (200°C).
  • Cut squash in half lengthwise and scoop out seeds.
  • Tip: Microwave squash for 3–5 minutes (pierced with a knife) to make slicing easier.
  • Lightly rub cut sides with oil and place face-down on a rimmed baking sheet.
  • Roast 40 minutes, or until tender and easily pierced with a fork.
  • Set aside to cool slightly before handling.

2. Make the Sauce:

  • While squash is roasting, heat a drizzle of oil in a skillet over medium-high heat.
  • Sauté garlic until fragrant (about 1 minute).
  • Add spinach and cook until wilted.
  • Stir in cream, Parmesan, and cream cheese until melted and smooth.
  • Season with salt and pepper to taste.

3. Assemble & Bake:

  • Once squash is cool enough, scrape into "spaghetti" strands using a fork.
  • Divide sauce between squash halves, stirring to coat the strands.
  • Top with mozzarella and extra Parmesan, as desired.
  • Bake at 350°F (175°C) for 20 minutes, until hot and bubbly.
  • For a golden top, broil on high for 1–2 minutes, watching carefully.

Optional Add-ins:

  • Add cooked chicken or shrimp for extra protein — mix in with sauce or serve on the side.
 

Notes:

  • Makes 4 side servings (¼ squash each) or 2 hearty mains (½ squash each).
  • Great for meal prep — roast squash ahead and store in fridge for quicker prep later.
 

Nutrition


Calories: 274 kcal | Carbohydrates: 22g | Protein: 8g | Fat: 19g | Saturated Fat: 8g
Cholesterol: 50mg | Sodium: 350mg | Potassium: 400mg | Fiber: 5g | Sugar: 5g
Vitamin A: 1500 IU | Vitamin C: 10mg | Calcium: 75mg | Iron: 1.5mg
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