Chicken Alfredo Pasta Bake
This Chicken Alfredo Pasta Bake will certainly have a permanent spot in your dinner rotation. Tender pieces of seasoned chicken and short pasta are tossed in a homemade Alfredo sauce made with real butter, heavy cream, garlic, and freshly grated parmesan, then baked until the top turns golden and a little crisp at the edges. Yup, this is not a diet dinner, but we deserve to be decadent every once in a while, right?
While stovetop Alfredo is the traditional approach, baking the dish makes it better for a crowd. Everything stays hot longer, the sauce settles into a rich, clingy coating, and you get that irresistible cheesy top layer you just don’t get with a pan.
This is comfort food that doesn’t ask much from your grocery budget. It feeds six generously, reheats beautifully, and works just as well on a Tuesday night as it does when you’re feeding a group. Make the sauce and cook the chicken ahead of time; the weeknight assembly takes about 10 minutes before it goes in the oven. Fair warning, this one tends to disappear fast.
Table of Contents
Why Bake Chicken Alfredo Pasta
If you’ve ever made stovetop Alfredo for a group, you know the problem: it’s perfect for about five minutes before it tightens up, and by the time everyone is seated, it’s not quite what it was. Baking solves that by giving the sauce time to settle into the pasta rather than just coat it, and once it goes in the oven you’re completely hands-off, which makes it easier to manage the rest of the meal, keep the kitchen tidy, or just pour yourself a glass of wine while it finishes, all while that mozzarella on top turns golden and just a little crisp at the edges.
Tips for Success
- Use freshly grated Parmesan cheese. This is the one place in this recipe where it’s worth the extra few minutes. Pre-shredded parmesan contains anti-caking agents that prevent it from melting cleanly into the sauce, which can leave it grainy or clumpy. Fresh Parmesan melts gradually and smoothly, which is what gives Alfredo its silky consistency. It also has a stronger, more complex flavor than the shelf-stable stuff.
- Pull the pasta out of the water two minutes before the package says it’s done. It will finish cooking in the oven, and you want it to have a little bite going in, not come out soft and mushy.
- Keep the heat low and steady when you’re making the sauce. Never let it come to a hard boil, and don’t rush the simmer.
- Don’t overcook the sauce. After simmering, but before adding the parmesan, the sauce should lightly coat the back of a spoon yet flow easily when stirred. After adding the parmesan, it should have some slight body but will still not be thick. The pasta will absorb liquid, the oven will thicken it further, and the parmesan will continue to thicken the sauce. If it looks thick on the stove, it will usually be too thick after baking, so add some warm cream or warm pasta water to thin it. Thick sauce on the stove equals dry/oily in the oven!!!
- Cube, don’t shred your chicken. Resist the urge to shred the chicken. It seems like the easier move, especially with rotisserie, but shredded chicken gets stringy and dries out in a baked dish. Cut it into bite-sized cubes instead, and it stays juicy all the way through, giving you a much more satisfying bite with every forkful.
- Add the Parmesan cheese gradually after you’ve taken the pan off the heat. Dump it all at once, and you risk the sauce breaking. Stirring in slowly, a little at a time, keeps the emulsion smooth and the sauce creamy.
“Breaking” is what happens when an emulsion falls apart. In Alfredo sauce, the butter, cream, and cheese are combined into a smooth, unified mixture. When the sauce breaks, those ingredients separate back out, so instead of a creamy, silky sauce, you end up with greasy pools of butter or oil floating on top of a grainy, curdled-looking base. It’s not a food safety issue, but the texture and appearance are unpleasant, and it won’t coat the pasta as it should.
- Let the bake rest for five to ten minutes before you serve it. The sauce requires a few minutes to settle after being heated in the oven.
Storing and Reheating Chicken Alfredo Pasta Bake
Let the pasta bake cool for 20 to 30 minutes before covering it, then store it tightly covered with foil or in an airtight container in the fridge for up to 3 to 4 days. Day two reheats beautifully.
By day three, the sauce is still creamy but needs a little help, which is where the liquid comes in. To reheat, add 2 to 4 tablespoons of milk around the edges of the dish, cover tightly with foil, and warm in a 325°F (163°C) oven for 15 to 25 minutes, depending on how much you have left. Pull the foil off for the last few minutes. Low and slow is the key here. Push the heat, and the sauce separates and turns greasy, more like buttered noodles than Alfredo.
You can freeze it for up to two months, though the sauce may separate a bit on thawing. If you go that route, thaw it overnight in the fridge and reheat with a generous splash of liquid to help it come back together.
Troubleshooting
This usually means the heat was too high when you added the parmesan, or you used pre-shredded cheese. Take the pan off the heat completely before adding the cheese, and add it slowly. If the sauce has already broken, a splash of warm cream whisked in off the heat can sometimes bring it back.
Add warm pasta water a few tablespoons at a time until it loosens up. A sauce that looks thick on the stovetop will be dry and oily after baking, so don’t skip this step.
The noodles went into the oven fully cooked instead of al dente. Next time, pull them two full minutes early. They will finish cooking in the oven.
Chicken breast can overcook fast. Try using the carryover cooking method: pull the chicken off the heat at 155 to 160 degrees, tent it loosely with foil, and let it rest. The internal temperature will climb to 165 on its own in about five to ten minutes, and the chicken will stay juicy when it goes back into the oven with the pasta.
Always add a splash of milk around the edges before reheating and cover tightly with foil. Reheat low and slow at 325 degrees. Without the added liquid, the pasta soaks up everything and the sauce separates.
Chicken Alfredo Pasta Bake
Equipment
Ingredients
Chicken
- 2 boneless skinless chicken breasts 1-1 ½ inch thick
- ½ tsp salt
- 1 tbsp olive oil or butter
- ⅛ tsp pepper
- ¼ tsp paprika
- ¼ tsp garlic powder
Alfredo Sauce
- 4 tbsp butter unsalted
- 2 cups heavy cream
- 2 tsp garlic minced
- 1½ cups fresh parmesan grated finely
- 1 tsp kosher salt
- ¼ tsp ground pepper
- pinch nutmeg
- ½ cup reserved pasta water
Pasta Bake
- 1 pound short pasta such as cavatappi penne, rotini or fusilli
- 1 cup Mozzarella shredded
- 2 tbsp fresh parsley, chopped optional
- butter for greasing the dish
Instructions
- Preheat the oven to 350℉ (177℃) and butter a 9×13 dish.
- In a pot of salted, boiling water, cook 1 pound of noodles until al dente or slightly undercooked (2 min before recommended cooktime). Reserve 1 cup of pasta water for later use. Place the noodles in a large bowl.
Chicken
- Next, season chicken breast with salt, pepper, paprika and garlic powder.
- In a medium pan, over medium-high heat, add oil and sear the chicken breasts for 5 minutes per side. Reduce the heat to medium-low and cook until 165 degrees (do not overcook), about 4-6 minutes per side. Remove and let rest for 5-10 minutes, then cut into bite-sized cubes. (If the chicken breast is thicker than 1- 1 ½ inches, place the chicken breast in between plastic wrap and pound the chicken with a meat mallet or rolling pin until it is 1- 1 ½ inches thick. Thicker chicken breast will take longer to cook.)
Making the Sauce
- Melt 4 tablespoons of unsalted butter over medium heat and add the minced garlic, stirring frequently until fragrant, about 1 minute.
- Whisk in 2 cups of heavy cream, 1 teaspoon of salt, ¼ teaspoon of pepper and a pinch of nutmeg, simmer gently for 5-8 minutes, stirring often. Add ¼ cup pasta water and incorporate. Sauce should be warm enough for the cheese to melt.
- Remove the pan from the heat and gradually add the 1½ cups of finely grated Parmesan cheese until melted.
- Sauce should be smooth and thin, cheese should be melted through the sauce. The sauce will thicken more in the oven. If it is not thin add more pasta water until you reach a thinner consistency.
Combine
- In a large bowl, gently mix the pasta and the alfredo sauce until coated. Mix in the cubed chicken until evenly dispersed.
- Pour into a buttered 9×13" dish and top with 1 cup shredded mozzarella.
- Bake at 350℉ (177℃) covered for 10-12 minutes, then uncover and continue to bake for 5-7 minutes. Let it rest for 5-10 minutes before serving. Sprinkle with chopped parsley and serve warm, straight from the baking dish.
Notes
Nutrition
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