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Easy Marry Me Chicken & Spaghetti Squash Casserole


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  • Author: Merry
  • Total Time: 40 minutes
  • Yield: 6 servings

Description

This Marry Me Chicken & Spaghetti Squash Casserole is a creamy, cheesy, and flavorful dish that’s as comforting as it is healthy. Tender spaghetti squash replaces traditional pasta, creating a low-carb base for a rich sun-dried tomato and cream cheese sauce, shredded chicken, and golden, bubbly mozzarella. It’s easy to make, family-friendly, and perfect for any occasion.


Ingredients

  • 1 (3½-pound) spaghetti squash, halved lengthwise and seeded
  • 2 tablespoons water
  • 1½ cups half-and-half
  • 1 clove garlic, grated
  • ¾ cup julienne-cut sun-dried tomatoes in oil, drained and chopped, divided
  • ¾ teaspoon ground pepper, divided
  • ¼ teaspoon salt
  • 1 (8-ounce) package reduced-fat cream cheese, cubed, at room temperature
  • 1 cup shredded low-moisture part-skim mozzarella cheese, divided
  • 3 cups shredded cooked chicken breast (16 ounces)
  • 2 tablespoons grated Parmigiano-Reggiano cheese
  • 2 tablespoons small fresh basil leaves

Instructions

  • Prepare the Spaghetti Squash
    • Preheat the oven to 425°F. Coat a 9-by-13-inch broiler-safe baking dish with cooking spray.
    • Place the spaghetti squash halves cut-side down in a microwave-safe dish or on a large rimmed plate. Add 2 tablespoons of water.
    • Microwave on High, uncovered, for 12 minutes, or until the squash is tender. Let it cool for 10 minutes.
    • Use a fork to scrape the squash flesh into spaghetti-like strands and transfer them to a large bowl.
  • Make the Sauce
    • Heat 1½ cups of half-and-half in a medium saucepan over medium-high heat until it begins to simmer. Reduce the heat to medium-low.
    • Add the grated garlic and cook, whisking occasionally, for 8–10 minutes until the liquid reduces to about 1 cup.
    • Stir in ½ cup of the chopped sun-dried tomatoes, ½ teaspoon of pepper, and ¼ teaspoon of salt. Remove the saucepan from heat.
    • Gradually whisk in the cream cheese until smooth, then whisk in ½ cup of shredded mozzarella, a little at a time, until fully melted.
  • Assemble the Casserole
    • In the large bowl with the spaghetti squash strands, add 3 cups of shredded cooked chicken. Pour the creamy sauce over the mixture and stir to combine.
    • Transfer the mixture to the prepared baking dish.
  • Add the Toppings
    • Sprinkle the remaining ½ cup mozzarella cheese evenly over the top.
    • Add 2 tablespoons of grated Parmigiano-Reggiano and the remaining ¼ cup of sun-dried tomatoes.
  • Bake and Broil
    • Bake the casserole for 10 minutes, or until the cheese is melted and bubbling.
    • Switch the oven to broil and broil for 1–2 minutes, or until the cheese is crispy and caramelized.
  • Garnish and Serve
    • Let the casserole rest for 10 minutes before serving.
    • Garnish with fresh basil leaves and sprinkle with the remaining ¼ teaspoon of pepper.

Notes

  • Spaghetti Squash Tip: For a faster prep, you can roast the spaghetti squash in the oven instead of microwaving it. Bake cut-side down at 400°F for 40–50 minutes.
  • Dairy-Free Option: Substitute half-and-half with coconut cream and use dairy-free cream cheese and mozzarella for a lactose-free version.
  • Storage: Store leftovers in an airtight container in the fridge for up to 3 days. Reheat in the oven or microwave until warmed through.
  • Customizable Add-Ins: Add sautéed spinach or mushrooms to the mixture for extra veggies.
  • Prep Time: 15 minutes
  • Cook Time: 25 minutes
  • Category: Main Course
  • Method: Baking
  • Cuisine: American