Garlic Butter Spaghetti with Cheesy Italian Sausage and Spinach

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Creamy, savory, and full of comforting flavor, this garlic butter spaghetti with cheesy Italian sausage and spinach is the ultimate cozy pasta dinner. It’s got the kind of richness that clings to each strand of spaghetti, with layers of garlic, melty cheese, and a little green freshness from spinach. The sausage brings a bold, satisfying taste that makes this feel like a treat, even on a weeknight.

The best part? You don’t need fancy ingredients or complicated steps. This dish comes together quickly but tastes like something you’d order in a rustic Italian trattoria. It hits all the right notes: buttery garlic goodness, gooey cheese, juicy sausage, and tender spinach tossed in al dente pasta. A one-pan wonder that turns simple staples into something spectacular.

Why You’ll Love This Garlic Butter Spaghetti with Cheesy Italian Sausage and Spinach

This meal is the definition of comfort food. The garlic butter sauce creates an irresistible aroma as it sizzles in the pan, and it perfectly coats each bite of pasta. The cheesy Italian sausage adds meaty depth and just enough spice, while spinach offers a mild earthiness that rounds everything out. It’s hearty but balanced, rich but not overwhelming, and easy enough to make after a long day. You’ll crave it again before the plates are cleared.

What Kind of Sausage Should I Use?

For this recipe, you’ll want to use a good-quality Italian sausage—mild or spicy depending on your preference. Pork sausage brings the most flavor, especially when it’s seasoned with herbs and fennel. If you’re aiming for something lighter, chicken or turkey sausage can work beautifully too. Just make sure it’s fully cooked or give it enough time in the pan to brown nicely and release all those savory juices.

Ingredients for the Garlic Butter Spaghetti with Cheesy Italian Sausage and Spinach

This recipe relies on everyday pantry staples and a few key ingredients to build bold flavor fast. Here’s what you’ll need to bring this delicious pasta dish to life:

• Spaghetti – The base of this recipe, it holds the garlic butter and sausage beautifully and gives the dish its satisfying texture.
• Italian Sausage – Look for sausage with herbs and spices already in it. This adds rich, meaty flavor that pairs perfectly with the garlic butter.
• Garlic – A must for the sauce. Fresh garlic sautéed in butter forms the aromatic heart of the dish.
• Butter – The foundation of the sauce. It brings a silky, rich coating to the pasta.
• Parmesan Cheese – This melts into the sauce for a salty, nutty layer that complements the sausage.
• Mozzarella Cheese – For gooey texture and cheesy goodness. It helps make the sauce creamy and indulgent.
• Spinach – Adds a fresh contrast and vibrant green color. It softens into the sauce without overpowering the other flavors.
• Red Pepper Flakes – Optional, but great if you like a little heat to balance the richness.
• Salt & Pepper – Essential for seasoning everything just right.

How To Make the Garlic Butter Spaghetti with Cheesy Italian Sausage and Spinach

Step 1: Cook the Spaghetti

Bring a large pot of salted water to a boil and cook the spaghetti until al dente. Reserve 1/2 cup of the pasta water, then drain and set aside.

Step 2: Brown the Sausage

In a large skillet over medium heat, cook the Italian sausage until fully browned, breaking it up with a spoon as it cooks. Once browned, remove the sausage from the skillet and set aside.

Step 3: Make the Garlic Butter Base

In the same skillet, add the butter and minced garlic. Sauté for 1-2 minutes until the garlic is fragrant and just golden. Don’t let it burn—keep it moving.

Step 4: Add Cheese and Spinach

Lower the heat and stir in the Parmesan and mozzarella cheeses until melted. Add the spinach and cook just until wilted.

Step 5: Combine Everything

Return the sausage to the skillet. Add the cooked spaghetti and toss to combine. Use a splash of the reserved pasta water to loosen the sauce if needed.

Step 6: Season and Serve

Taste and season with salt, pepper, and red pepper flakes if using. Serve hot and garnish with more Parmesan if desired.

How to Serve and Store Garlic Butter Spaghetti with Cheesy Italian Sausage and Spinach

This dish is best served hot, right out of the skillet while the cheese is still melty and the garlic butter sauce clings to the pasta. It makes a comforting meal for four people and pairs beautifully with a simple green salad or a piece of warm crusty bread.

If you have leftovers, store them in an airtight container in the fridge for up to 3 days. When reheating, a splash of water or milk in the skillet can help loosen the sauce again without drying it out. For best flavor, reheat on the stovetop rather than the microwave.

What to Serve With Garlic Butter Spaghetti?

A Crisp Green Salad

The richness of the pasta pairs wonderfully with something light and crunchy. Toss together arugula, cucumbers, cherry tomatoes, and a lemon vinaigrette.

Garlic Bread or Focaccia

More garlic? Always. A warm piece of garlic bread or Italian focaccia brings extra comfort and is perfect for sopping up leftover sauce.

Roasted Broccoli or Asparagus

These greens balance the indulgence of the pasta and add texture and earthiness to the plate.

Balsamic Glazed Brussels Sprouts

Slightly sweet, tangy, and crispy—they’re a delicious contrast to the creamy pasta.

Caprese Skewers

Fresh mozzarella, cherry tomatoes, and basil make a fun and flavorful side dish.

Lemon Herb Chicken

If you’re feeding a larger group or want extra protein, serve a simple grilled or baked lemon chicken breast alongside.

A Glass of White Wine

A chilled glass of Pinot Grigio or Sauvignon Blanc cuts through the richness and elevates the whole experience.

Want More Pasta Ideas with a Comfort Twist?

If you love this garlic butter spaghetti with cheesy Italian sausage and spinach, check out a few more Luna Meals favorites that will warm your soul:

• Creamy Garlic Butter Shrimp Scampi Lasagna for a seafood spin on buttery pasta layers.
• Delicious Garlic Sausage Alfredo Rigatoni to enjoy another cheesy sausage combo.
• Quick Creamy Cajun Pasta Recipe when you want heat and comfort all in one.
• Cowboy Butter Chicken Linguine with bold flavor and buttery goodness.
• Easy Chicken with Zucchini Corn Garlic Sauce if you’re looking to mix in more veggies without sacrificing flavor.

Save This Recipe For Later

📌 Save this recipe to your Pinterest pasta board so you can come back to it any time.

Let me know in the comments how your version turned out. Did you add mushrooms or swap in kale for the spinach? Maybe a little extra mozzarella?

I love hearing how you make these dishes your own. Feel free to ask questions or share your tips—we’re building flavor magic together.

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Conclusion

Garlic butter spaghetti with cheesy Italian sausage and spinach is the kind of recipe that turns a regular dinner into something you’ll crave again and again. Simple ingredients, rich flavor, and a comforting finish—this dish delivers every time. Whether you’re cooking for guests or just feeding your weeknight cravings, it’s a guaranteed hit on the table.

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