Pesto Chicken Pasta Bake

The smell of basil and melting mozzarella drifting through the kitchen on a rainy Tuesday evening is enough to make anyone believe comfort food is a love language. I threw this bake together once when a friend showed up unannounced with a bottle of wine and zero expectations beyond something warm. We ended up standing around the baking dish with forks, skipping plates entirely. That is the kind of recipe this is.

My neighbor once told me she could smell this from the hallway and invited herself over before I even finished plating it. We sat on the floor of my tiny apartment living room with the baking dish between us, and she asked for the recipe before taking her second bite. Moments like that are why I keep coming back to this dish whenever I need something effortless but special.

Ingredients

• Penne or rigatoni (350 g): Use rigatoni if you want the sauce to really hide inside the tubes and surprise you with every bite.
• Boneless skinless chicken breasts (2, about 300 g): Dice them small and uniform so every forkful gets a piece without feeling overloaded.
• Basil pesto (180 ml): Store bought works beautifully here, but if you have homemade in the freezer, now is its moment to shine.
• Heavy cream (150 ml): This is what transforms pesto from a pasta toss into something that bakes up creamy and luscious.
• Milk (50 ml): Just enough to loosen the sauce so it does not seize up in the oven.
• Shredded mozzarella (120 g): Half goes mixed in for stretch, half goes on top for that golden crust everyone fights over.
• Grated Parmesan (30 g): A little goes a long way to add salty depth to the cheese topping.
• Olive oil (1 tbsp): For searing the chicken and building a bit of color that carries through the whole bake.
• Salt and pepper: Season the chicken generously and taste the sauce before it goes into the dish.
• Cherry tomatoes (100 g, optional): Halved tomatoes burst in the oven and add little pockets of brightness.
• Baby spinach (75 g, optional): Stir it in raw and let the residual heat wilt it just enough without turning it to mush.

Instructions

Heat the oven:

Set it to 200°C (400°F) and let it fully come to temperature while you prep everything else so the bake is even from the start.

Cook the pasta:

Boil it in well salted water until just barely al dente because it will cook a little more in the oven and nobody wants mushy pasta.

Sear the chicken:

Heat olive oil in a skillet over medium high heat, add the diced chicken seasoned with salt and pepper, and let it sit undisturbed for a minute so it actually gets golden before you stir.

Bring it all together:

In a big bowl, toss the drained pasta, cooked chicken, pesto, cream, milk, and half the mozzarella until every piece is coated and it looks almost too tempting to bake.

Build the bake:

Spoon the mixture into a greased baking dish, scatter the remaining mozzarella and all the Parmesan on top, and try not to snack on the cheese before it goes in.

Bake until golden:

Slide it into the oven for about 20 minutes until the edges are bubbling and the cheese on top has those irresistible brown spots.

Rest and serve:

Let it sit for 5 minutes so the sauce settles back into the pasta instead of running everywhere when you scoop it.

Save

I once made this for a potluck where three people asked for the recipe and one person quietly packed a portion in a container to take home before anyone else could claim the leftovers. That small container moment told me more than any compliment ever could.

Swaps That Actually Work

Shredded rotisserie chicken is a brilliant shortcut when you cannot be bothered to cook raw chicken, and the smoky flavor from a store bought bird adds something unexpectedly good. For a lighter version, swap the heavy cream for Greek yogurt but stir it in off the heat so it does not curdle on you. Sun dried tomatoes chopped and folded in are a game changer if you want a tangy punch that makes people ask what your secret is.

What to Serve Alongside

A simple arugula salad with lemon juice and olive oil cuts through the richness of this bake perfectly. A glass of crisp Pinot Grigio or Sauvignon Blanc alongside makes it feel like you planned a whole dinner party when you really just opened the fridge and hoped for the best.

Storing and Reheating

This reheats beautifully the next day as long as you cover it with foil and warm it gently in the oven instead of nuking it into oblivion in the microwave.

• Leftovers keep in the fridge for up to 3 days in an airtight container.
• Freeze individual portions for up to a month and reheat from frozen at 180°C (350°F) for about 25 minutes.
• Always add a tiny splash of milk or cream before reheating to bring the sauce back to life.

Save

Some recipes earn a permanent spot in your rotation not because they are fancy but because they make people feel cared for with almost no effort. This is that recipe, and I hope it brings someone to your table who stays a little longer than expected.

Recipe FAQs

→ Can I use rotisserie chicken instead of raw chicken breasts?

Yes, absolutely. Using cooked shredded rotisserie chicken saves time and works perfectly. Simply skip the chicken cooking step and fold the shredded chicken into the pasta mixture before baking.

→ What type of pasta works best for this bake?

Short tube-shaped pastas like penne or rigatoni are ideal because they hold the creamy pesto sauce well and maintain their texture during baking. Avoid delicate pastas that might become too soft.

→ Can I make this ahead of time?

Yes, you can assemble the entire dish, cover it tightly, and refrigerate for up to 24 hours before baking. Add an extra 5–10 minutes to the baking time if going straight from the refrigerator.

→ How should I store and reheat leftovers?

Store leftovers in an airtight container in the refrigerator for up to 3 days. Reheat individual portions in the microwave, or cover the baking dish with foil and warm in a 180°C (350°F) oven until heated through.

→ Can I freeze pesto chicken pasta bake?

Yes, you can freeze it before or after baking. Wrap tightly in foil and freeze for up to 2 months. Thaw overnight in the refrigerator before baking or reheating. Note that the cream sauce may separate slightly upon thawing.

→ What can I substitute for heavy cream to make it lighter?

Light cream, half-and-half, or plain Greek yogurt are great alternatives. If using Greek yogurt, stir it in off the heat to prevent curdling. The sauce will be slightly less rich but still flavorful.