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This Chicken Alfredo Bake is comfort food at its best—creamy, cheesy, and packed with flavor. Tender, seasoned chicken and fettuccine are coated in a rich Alfredo sauce, then topped with melty mozzarella and baked until golden and bubbly. It’s a simple, satisfying dish that’s perfect for family dinners or when you’re craving something indulgent without the hassle of dining out.

A baked pasta dish with cheese, herbs, and chicken in a white casserole dish. Its garnished with parsley. Nearby are cherry tomatoes, a block of cheese, crushed red pepper, and a wooden spoon on a cutting board.

Baked Chicken Alfredo is the ultimate creamy, cheesy comfort food that’s surprisingly simple to make.

Juicy, seasoned chicken is tossed with tender fettuccine and a creamy homemade Alfredo sauce before being baked under a layer of melty mozzarella. The result? A decadent, restaurant-quality dish that comes together effortlessly in your own kitchen.

Served with a side salad and garlic bread or tomato basil bread, it is the perfect comfort food meal.

Ingredients for a creamy pasta dish on a white countertop: raw chicken breasts, shredded cheese, fettuccine, cream cheese, butter, parmesan, measuring cup with half and half, oil, garlic powder, salt, and pepper.

Ingredients & Substitutions

Chicken Breast – Can be swapped with chicken thighs or rotisserie chicken.
Italian Seasoning – A blend of dried oregano, basil, and thyme if you don’t have a premade blend.
Sea Salt – Adjust the amount to taste.
Avocado Oil – Use your favorite cooking oil.
Fettuccine Noodles – Swap penne pasta or linguine for a different texture.
Butter – Can be replaced with ghee.
Half and Half – Use heavy cream for a richer sauce or whole milk for a lighter option.
Cream Cheese – Mascarpone can be used for a similar creamy texture.
Garlic Powder – You can use sauteed fresh garlic if you prefer.
Black Pepper – Freshly ground is best. White pepper can be used for a milder, less noticeable spice.
Parmesan Cheese – Pecorino Romano or Grana Padano are great alternatives with a similar salty, nutty flavor.
Mozzarella Cheese – Swap with provolone or white cheddar for a different melty cheese experience.

Step by Step

Raw chicken breast slices seasoned with pepper and other spices are placed in a stainless steel frying pan, ready to be cooked. — Preheat the oven to 350°F and grease a 13x9 casserole dish. Bring a large pot of salted water to a boil.
Season the chicken with Italian seasoning and salt.
Heat avocado oil in a skillet over medium-high heat. Cook the chicken for about 6 minutes per side until golden and cooked through. Let cool, then dice.

A stick of butter melting in a pan, surrounded by bubbling brown butter and a slightly browned surface. — Melt butter in the same skillet.

A red whisk stirring a frothy, creamy liquid in a stainless steel pot. The mixture appears to be in the process of being blended and cooked on a stovetop. — Add half and half and bring to a simmer.

A mixture of light brown cream sauce with several white cubes of cream cheese scattered on top. The surface of the liquid has small bubbles. — Cut cream cheese into cubes and add to the skillet.

Close-up of a mixture of white liquid with a swirl of seasonings, creating a marbled effect. — Stir in garlic powder, salt, and pepper. Cook for 5 minutes, whisking until smooth.

A pot of fettuccine boiling in water, with visible bubbles and steam rising. The spaghetti strands are partially submerged, and the pot sits on a stove with a white tile backsplash. — Cook the pasta according to package directions, using the cook time for al dente. Drain, reserving 1 cup of cooking water.

A close-up of a mixing bowl containing beige cream sauce being stirred with a red whisk. Bubbles and small clumps are visible on the surface. — Add parmesan cheese. Cook for 3 more minutes until the cheese is melted and you have a creamy sauce.

A large stainless steel skillet with a cream sauce. — Add reserved cooking water as needed to reach the desired sauce consistency.

Diced chicken pieces in a creamy white sauce with visible seasoning. — Stir in diced chicken.

A close-up of cooked fettuccine pasta in a silver pan. The noodles are piled on top of each other, creating a textured surface. The background shows a hint of cream sauce. — And cooked pasta.

A white baking dish filled with fettuccine pasta and chunks of chicken in a creamy sauce, evenly distributed across the dish. The pasta and sauce appear lightly seasoned, creating a simple yet appetizing look. — Transfer to the prepared baking dish.

A rectangular baking dish filled with pasta topped with shredded cheese. The pasta is mixed with a creamy sauce and sprinkled with herbs. The dish is on a light-colored countertop. — Top with mozzarella cheese and bake for 20 minutes.

Tips & Tricks for Baked Chicken Fettucine Alfredo

Pound the Chicken Evenly – Flattening the chicken to an even thickness ensures it cooks evenly.
Use Freshly Grated Parmesan – Pre-shredded cheese doesn’t melt as smoothly due to added anti-caking agents.
Want to Add Broccoli? – For baked chicken broccoli alfredo, add 12 ounces of steamed broccoli florets when you add the chicken to the pot. You could also add sautéed mushrooms, spinach, or crispy bacon for extra flavor.
Let it Rest Before Serving – Allowing the dish to sit for a few minutes helps the sauce thicken and flavors meld.
Leftovers - Store any leftover pasta in an airtight container in the fridge up to for three days.

A baked pasta dish in a white casserole with melted cheese and herbs. Its on a dark surface with ingredients like cherry tomatoes, salt, and grated cheese nearby. A serving spoon and wooden board are beside a white cloth with red stripes.

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A rectangular baking dish filled with creamy, cheesy baked fettuccine pasta mixed with pieces of chicken, garnished with chopped herbs. A wooden spoon and grated cheese are nearby on a wooden board.

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