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Creamy Butternut Squash Pasta With Sausage And Spinach

Creamy butternut squash pasta with sausage and spinach is a silky Italian-American rigatoni sauce made by simmering squash puree with heavy cream until smooth, then tossing with starchy pasta water. The result is tender pasta coated in a glossy orange sauce, finished with wilted spinach, savory sausage, and parmesan.
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Prep Time 20 minutes
Cook Time 30 minutes
Total Time 50 minutes
Servings: 6 servings
Course: Main Dish
Cuisine: Italian-American
Calories: 760
Ingredients Equipment Method Notes

Ingredients
  

Pasta
  • 1 lb rigatoni or penne Use rigatoni or penne for the best sauce cling.
Sausage & aromatics
  • 1 lb Italian sausage, casings removed Brown until cooked through; drain fat before building the sauce.
  • 1 onion, diced Diced so it softens evenly in the skillet.
  • 4 garlic, minced Minced for quick fragrant sauté.
Greens
  • 4 cups baby spinach Toss in at the end so it wilts but stays bright.
Sauce
  • 2 cups butternut squash puree Puree should be smooth for a creamy sauce texture.
  • 1 cup heavy cream Provides the rich, creamy body.
  • 0.5 cup pasta cooking water Starchy water helps emulsify and loosen the sauce.
  • 1 cup parmesan, grated Stir in off-boil or briefly on low to keep it smooth.
  • 1 tsp Italian seasoning Classic herbs for an Italian-American profile.
  • 0.25 tsp nutmeg A small amount brings warm depth.
  • 0.5 tsp red pepper flakes Adjust to your heat preference.
  • Salt and pepper to taste Season in the final step and adjust as needed.

Equipment

  • 1 large skillet

Method
 

Cook the pasta
  1. Bring a large pot of salted water to a boil and cook rigatoni or penne until al dente, then reserve 1/2 cup pasta cooking water before draining. Visual cue: pasta should still have a firm bite when cut.
Brown the sausage
  1. Brown Italian sausage in a large skillet over medium-high heat until fully cooked, then drain the fat and set the sausage aside. Visual cue: sausage should be browned with darker crumbles and no pink remaining.
Build the aromatic base
  1. In the same skillet, sauté the diced onion over medium heat for 4 minutes until softened. Visual cue: onion pieces turn translucent and slightly golden.
  2. Add minced garlic and Italian seasoning, then cook for 2 minutes while stirring. Visual cue: garlic becomes fragrant but does not brown.
Make the creamy butternut squash sauce
  1. Stir in butternut squash puree and heavy cream, then add nutmeg and red pepper flakes. Visual cue: sauce turns a uniform orange color.
  2. Simmer the sauce for 5 minutes, stirring occasionally, then add parmesan and stir until smooth. Visual cue: the sauce thickens into a glossy, creamy consistency.
Combine and finish
  1. Toss the drained pasta with the sauce, adding reserved pasta cooking water as needed to loosen. Visual cue: sauce clings to the pasta and looks creamy rather than dry.
  2. Add baby spinach and toss until wilted, turning off the heat if needed to prevent overcooking. Visual cue: spinach collapses quickly into dark green ribbons.
  3. Return the browned sausage to the pan, then season with salt and pepper to taste and toss to combine. Visual cue: sausage is evenly distributed through the creamy pasta.

Notes

Pro tip: grate parmesan finely so it melts smoothly into the sauce. Refrigerate leftovers in an airtight container up to 3 days; reheat gently with a splash of water or cream to loosen. Freezing is not recommended for the creamiest texture, but you can freeze portions and reheat on low. For a dietary swap, use a plant-based cream alternative and vegan parmesan to make it dairy-free while keeping the same method.