Go Back
Savory Spaghetti Squash Boats With Chicken Alfredo At Home

Savory Spaghetti Squash Boats With Chicken Alfredo At Home

Creamy chicken Alfredo fills tender spaghetti squash boats, finished with bubbling cheese for a cozy, weeknight-friendly dinner at home tonight.
Print Recipe Pin Recipe
Prep Time 15 minutes
Cook Time 55 minutes
Total Time 1 hour 10 minutes
Servings: 4
Course: Dinner
Cuisine: American
Calories: 420
Ingredients Method Notes

Ingredients
  

  • 2 medium spaghetti squash firm, heavy for their size
  • 2 tablespoons olive oil for roasting and sautéing
  • 1 teaspoon salt divided (plus more to taste)
  • ½ teaspoon black pepper plus more to finish
  • 2 cups cooked chicken chopped or shredded (rotisserie works well)
  • 2 tablespoons butter
  • 3 cloves garlic minced
  • 1 ½ cups heavy cream or half-and-half for a lighter sauce
  • 1 cup freshly grated Parmesan best for smooth melting
  • ½ teaspoon Italian seasoning optional, but nice
  • ¼ teaspoon red pepper flakes optional for gentle warmth
  • 1 cup shredded mozzarella for the bubbly top
  • 2 tablespoons chopped parsley optional, for a fresh finish

Method
 

  1. Heat your oven to 400°F and line a baking sheet with parchment paper or foil for easy cleanup.
  2. Carefully cut each spaghetti squash in half lengthwise, then scoop out the seeds and stringy center with a spoon.
  3. Brush the cut sides with olive oil and sprinkle with salt and black pepper, then place cut-side down on the baking sheet.
  4. Roast for 35–45 minutes, until a fork slides in easily and the squash feels tender when pressed.
  5. While the squash roasts, warm a skillet over medium heat with a little olive oil, then add the cooked chicken just to heat through and lightly brown the edges.
  6. Add butter to the skillet and let it melt, then stir in the garlic and cook for about 30 seconds until fragrant (you want a gentle sizzle, not browning).
  7. Pour in the cream, stir, and let it come to a soft simmer—small bubbles around the edges are perfect.
  8. Slowly stir in the Parmesan until the sauce turns smooth and creamy, then season with Italian seasoning, black pepper, and red pepper flakes if using.
  9. Reduce heat to low and let the sauce thicken for 2–3 minutes; it should coat the back of a spoon without feeling gluey.
  10. When the squash is ready, flip the halves over and use a fork to scrape the flesh into tender strands, leaving some squash in the shell for structure.
  11. Spoon the chicken Alfredo sauce into each squash half, gently tossing it with the strands right in the shells, then top with mozzarella.
  12. Return the boats to the oven for 8–12 minutes until the cheese is melted, golden in spots, and the sauce is bubbling; finish with parsley and a little black pepper.

Notes

Spaghetti squash size matters more than people expect. Two medium squash usually gives you four sturdy boats; very large squash can be watery and softer, while very small squash can roast too quickly and leave you with short strands. For doneness, don’t chase “mushy.” You want the squash tender enough to scrape, but still structured—when you press the shell, it shouldn’t collapse.
Cutting the squash can be the hardest part. A steady knife, a dry cutting board, and a slow hand make it safer. If it’s extremely firm, microwave the whole squash for 2–3 minutes to soften the skin slightly, then cut. When roasting, place cut-side down for the best texture and mild caramelization. If you roast cut-side up, the strands can dry and turn stringy.
For the Alfredo, keep heat moderate. You want a gentle simmer with tiny bubbles; boiling can thin the sauce and sometimes separate the fat. Add Parmesan gradually, stirring constantly, and lower the heat before the cheese goes in. If the sauce gets too thick, loosen it with a splash of warm milk or cream. If it’s too thin, simmer 1–2 minutes longer, stirring, until it coats a spoon.
Cheese topping is flexible. Mozzarella gives you the best melt and stretch; a little extra Parmesan on top adds salty depth. If you want a deeper golden finish, broil for a minute or two, but don’t walk away. Alfredo can go from perfect to scorched quickly.
Make-ahead tip: roast the squash earlier in the day, scrape the strands, and refrigerate. When ready, warm the strands, make the sauce fresh, assemble, and bake until bubbly.