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overhead of a spaghetti squash halved and filled with alfredo.
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5 from 1 vote

Spaghetti Squash Alfredo with Chicken and Caramelized Onions

This Spaghetti Squash Alfredo with Chicken and Caramelized Onions is hearty comfort food made healthy and nutritious. Perfectly roasted spaghetti squash and tender bites of chicken smothered in a creamy and flavorful homemade Alfredo sauce.
Prep Time15 minutes
Cook Time1 hour
Course: Dinner
Method: Baking
Servings: 5
Author: Lexi

Ingredients

  • 1 spaghetti squash roasted
  • 1 large onion sliced
  • 2 tablespoons butter
  • 2 garlic cloves minced
  • 1 pound boneless chicken breasts cubed
  • 1/2 cup mayo homemade or store-bought
  • 2 tablespoons unsweetened almond milk
  • 1/2 teaspoon garlic powder
  • 1/2 teaspoon onion powder
  • Pinch salt more to taste
  • Pinch black pepper more to taste
  • Pinch red pepper flakes more to taste
  • 1/2 cup fresh parmesan cheese
  • Chopped fresh parsley for garnish

Instructions

  • Preheat oven to 400°F.
  • Slice spaghetti squash in half and scrape out seeds. Drizzle with extra-virgin olive oil and place face down on a lined baking sheet and roast for 30 minutes or until fork tender.
  • Make caramelized onions: In a skillet heat 1 tablespoon of grass-fed butter with onions. Sauté on medium-low heat until onions begin to caramelize and brown, but not burn. Yields about 1 cup of caramelized onions.
  • In a skillet over medium heat, heat butter and sauté garlic for 1 minute.
  • Season chicken with salt and pepper and add into the skillet. Let cook for 6 minutes, or until no pink remains, flipping halfway through.
  • Add in mayo, almond milk, and spices. Mix to combine.
  • Add in caramelized onions and spaghetti squash. Toss to combine. Add the parmesan cheese and adjust spices as desired.
  • Garnish with fresh parsley and serve hot.

Notes

  • Leftover spaghetti squash Alfredo will last in an airtight container in the fridge for 3-5 days. I don't recommend freezing it because the texture of the squash and the sauce will be affected.
  • To reheat, warm in the microwave or on low on the stove with a splash of milk to moisten.

Nutrition

Calories: 486kcal | Carbohydrates: 17.7g | Protein: 38.9g | Fat: 29.3g | Saturated Fat: 11.1g | Cholesterol: 134mg | Sodium: 493mg | Fiber: 1.1g | Sugar: 3.9g