Name: One Pot Creamy Garlic Parmesan Alfredo
Prep time: 5 min
Cook time: 20 min
Ingredients: 1 lb rigatoni or any small-shaped pasta (uncooked); 4 tbsp butter; 1 ½ tsp garlic powder; 4 cups water; 1 ½ cups heavy whipping cream; 1 cup freshly grated Parmesan cheese; ½ tsp dried oregano; ½ tsp dried thyme; 1 tsp salt; ½ tsp black pepper; ½ cup shredded mozzarella cheese

JUMP TO RECIPE JUMP TO VIDEO -

One Pot Creamy Garlic Parmesan Alfredo is the ultimate easy weeknight dinner! Made with tender pasta, a rich and creamy garlic Parmesan sauce, and plenty of melty cheese, this simple one-pot pasta recipe comes together with minimal prep and almost no cleanup. The best part? There’s no need to boil the pasta separately because everything cooks together in one skillet!

If there’s one thing I love, it’s a dinner that tastes like you spent hours in the kitchen but actually requires very little effort. This creamy garlic Parmesan pasta is one of those recipes! The pasta cooks right in the buttery garlic cream sauce, soaking up all that delicious flavor while creating the creamiest Alfredo-style sauce.

Whether you’re feeding a hungry family, looking for an easy meatless dinner, or just craving a big bowl of comforting pasta, this recipe is guaranteed to become a weeknight favorite. If you love easy pasta dinners with minimal cleanup, be sure to try my One Pan Creamy Pasta Shells or my Chicken Alfredo Dump and Bake. Both are delicious, family-friendly recipes that make getting dinner on the table a breeze!

Why You’ll Love This One Pot Garlic Parmesan Alfredo

This easy creamy pasta recipe checks all the boxes for a delicious, family-friendly dinner without the extra work.

One pot, minimal cleanup: Everything cooks in the same deep skillet, so there’s no separate pot of boiling water or colander to wash.
No need to boil the pasta: The uncooked rigatoni cooks directly in the creamy garlic sauce.
Rich and creamy: Heavy cream, freshly grated Parmesan, and mozzarella create an incredibly cheesy, velvety sauce.
Simple pantry ingredients: You probably already have most of the ingredients in your kitchen.
Ready in about 30 minutes: Perfect for those busy weeknights when you need something quick and satisfying.
Easy to customize: Add grilled chicken, shrimp, broccoli, or spinach to make it your own.

Ingredients for One Pot Creamy Garlic Parmesan Alfredo

You only need a handful of simple ingredients to make this creamy, cheesy pasta. Here’s what you’ll need and why each ingredient works so well.

Rigatoni: I love using rigatoni because the ridges and hollow centers hold onto all that delicious sauce. Penne, rotini, or another small pasta shape works too.
Butter: Adds richness and gives the garlic Parmesan sauce its buttery flavor.
Garlic Powder: An easy way to add garlic flavor throughout the sauce without chopping fresh garlic.
Water: Cooks the pasta directly in the skillet while the pasta starch helps thicken the sauce.
Heavy Whipping Cream: The secret to making this Alfredo-style pasta extra rich, smooth, and creamy.
Parmesan Cheese: Freshly grated Parmesan melts into the sauce for the best flavor and texture.
Oregano: Adds a subtle Italian-inspired flavor that complements the creamy sauce.
Thyme: Gives the pasta a delicious savory flavor.
Salt: Enhances all the flavors in the dish.
Black Pepper: Adds just the right amount of seasoning to balance the rich sauce.
Mozzarella Cheese: Makes the finished pasta extra cheesy and delicious.

How to Make One Pot Creamy Garlic Parmesan Alfredo

This is one of my favorite ways to make pasta because everything cooks together in one skillet. No draining, no extra pots, and hardly any cleanup!

1. Add everything to the skillet. In a large, deep skillet, combine the uncooked rigatoni, butter, garlic powder, water, heavy whipping cream, oregano, thyme, salt, and black pepper. Stir everything together. Set aside the Parmesan and mozzarella for later.

2. Bring to a gentle boil. Place the skillet over medium-high heat and bring the mixture to a gentle boil, stirring occasionally to prevent the pasta from sticking.

3. Reduce the heat and simmer. Once the liquid begins to boil, reduce the heat to medium-low and let the pasta simmer gently, stirring frequently, for approximately 15–20 minutes or until the pasta is tender. The exact cooking time will depend on the pasta shape. Keep an eye on the liquid and add a splash of water if needed.

4. Stir in the cheese. Once the pasta is cooked and most of the liquid has been absorbed, reduce the heat to low. Stir in the freshly grated Parmesan and shredded mozzarella until the cheese is melted and the sauce is smooth and creamy.

5. Serve and enjoy! Remove from the heat and let the pasta rest for 2–3 minutes to allow the sauce to thicken slightly. Give everything one final stir and serve warm with additional Parmesan and freshly cracked black pepper, if desired.

Watch How to Make It

Expert Tips for the Creamiest Garlic Parmesan Alfredo

A few simple tricks make all the difference when you’re cooking pasta directly in the sauce.

Use freshly grated Parmesan. Pre-shredded Parmesan often contains anti-caking ingredients that can prevent it from melting smoothly.
Stir frequently. Because the pasta cooks directly in the sauce, stirring helps prevent sticking and ensures everything cooks evenly.
Keep the heat gentle. Once the mixture comes to a boil, reduce the heat to a gentle simmer to prevent the cream from scorching.
Don’t drain the pasta. The starchy cooking liquid is what helps create that silky, creamy sauce.
Adjust the consistency. If the sauce gets too thick before the pasta finishes cooking, add a little warm water. If it’s too thin, let it simmer uncovered for another minute or two.
Add the cheese at the end. Stirring in the Parmesan and mozzarella over low heat helps prevent the sauce from becoming grainy.
Serve immediately. Creamy pasta is always best served fresh while the sauce is warm and silky.

Easy Variations and Add-Ins

One of the best things about this creamy garlic Parmesan pasta is how easily you can customize it with your favorite proteins and vegetables.

Chicken Alfredo: Stir in cooked, sliced chicken breast or shredded rotisserie chicken at the end for an easy protein-packed dinner.
Shrimp Alfredo: Add cooked garlic butter shrimp just before serving.
Broccoli Alfredo: Stir in small broccoli florets during the last 5–7 minutes of cooking for an easy way to add vegetables.
Spinach Alfredo: Add a few handfuls of fresh baby spinach during the last couple of minutes and stir until wilted.
Spicy Garlic Alfredo: Sprinkle in crushed red pepper flakes for a little heat.
Extra Cheesy Alfredo: Finish with additional freshly grated Parmesan or a little extra mozzarella.

What to Serve with Garlic Parmesan Alfredo

This creamy garlic Parmesan pasta is delicious all on its own, but I love pairing it with a few simple sides to make it a complete dinner.

Warm garlic bread or crusty French bread is perfect for soaking up every last bit of that creamy sauce. A fresh Caesar salad, simple green salad, or roasted broccoli also pairs beautifully with the richness of the pasta.

For a heartier meal, serve it alongside grilled chicken, baked salmon, or sautéed shrimp. It’s an easy way to turn this simple pasta into a dinner the whole family will love.

Make Ahead and Storage

Although this creamy Alfredo pasta is best served fresh, leftovers can be stored and reheated for another easy meal.

Refrigerator: Store leftover pasta in an airtight container in the refrigerator for up to 3–4 days.

Reheating: Warm the pasta in a skillet over low heat with a splash of milk, cream, or water to loosen the sauce. Stir gently until heated through. You can also microwave individual portions in short intervals, stirring between each.

Freezing: I don’t recommend freezing this pasta because cream-based sauces can separate and become grainy when thawed.

Make Ahead: For the best texture, I recommend preparing this recipe right before serving. However, you can measure the seasonings and grate the cheese ahead of time to make dinner even easier.

Frequently Asked Questions

Can you cook pasta directly in Alfredo sauce?

Yes! That’s exactly what makes this one-pot garlic Parmesan Alfredo so easy. The uncooked pasta simmers in a combination of water, heavy cream, butter, and seasonings. As it cooks, the pasta releases starch that helps create a naturally creamy sauce without needing to boil and drain the pasta separately.

Can I use a different pasta shape?

Absolutely! Penne, rotini, medium shells, and other short pasta shapes work well. Just keep in mind that different shapes may require slightly different cooking times and amounts of liquid.

Why is my Alfredo sauce too thick?

As the pasta sits, it continues absorbing liquid, causing the sauce to thicken. Simply stir in a splash of warm water, milk, or heavy cream until you reach your desired consistency.

You’ll Also Love

If you love easy, creamy pasta dinners, here are a few more family-friendly recipes to try next!