Creamy Pesto Chicken Pasta Bake

Rain was drumming against the kitchen window last Tuesday when I needed something that felt like a warm hug. I threw this together in twenty minutes while listening to my neighbor practice violin upstairs, the smell of basil and garlic filling the apartment so thoroughly I could practically taste it in the air before it even hit the table.

My sister called me halfway through prep, distracted and hungry after a brutal day at work. I told her to come over, and when she walked through the door ten minutes later, the cheese was already starting to bubble golden brown. She stood in the kitchen doorway and said that smell alone was worth the drive across town.

Ingredients

• 12 oz short pasta: Penne or rigatoni catch sauce in their tubes and ridges better than smooth pasta shapes
• 2 cups cooked chicken breast: Rotisserie chicken works perfectly here, or bake some ahead while the oven preheats
• 1 cup heavy cream: This creates that luxurious velvety base that pesto needs to really shine
• 1/2 cup basil pesto: Homemade is gorgeous but do not overthink it, a good jarred version works beautifully
• 1/2 cup freshly grated Parmesan: Pre-grated has anti-caking agents that keep sauce from getting properly silky
• 1/2 cup chicken broth: This thins the cream just enough without sacrificing any richness
• 2 cloves garlic, minced: Fresh garlic transforms the cream base into something aromatic
• 1 cup cherry tomatoes, halved: They burst during baking and create little pockets of sweetness
• 1 cup baby spinach, roughly chopped: The spinach wilts into the sauce and you barely notice it is there
• 1 cup shredded mozzarella: This creates that ridiculous cheese pull everyone pretends not to care about
• 1/4 cup freshly grated Parmesan: Extra Parmesan on top gets crispy and salty in spots

Instructions

Get your oven ready:

Preheat to 375 degrees and butter a 9 by 13 baking dish while you listen to the oven click and hum as it warms up

Cook the pasta smart:

Boil it for two minutes less than the package says since it will finish in the oven and nobody wants mushy pasta

Build the sauce base:

Whisk cream, pesto, broth, garlic, salt and pepper in a large skillet over medium heat, letting it bubble gently for a few minutes

Melt in the Parmesan:

Stir the cheese until completely incorporated and the sauce thickens enough to coat a spoon

Combine everything:

Toss the pasta, chicken, tomatoes and spinach into the sauce until every piece is coated and glossy

Transfer to baking dish:

Scrape the whole mixture into your prepared dish, spreading it into an even layer

Add the cheese blanket:

Sprinkle mozzarella and extra Parmesan across the top like you are tucking it in for a nap

Bake until bubbly:

Twenty to twenty-five minutes in the oven until the cheese is golden in spots and the sauce is bubbling up around the edges

Let it rest:

Five minutes on the counter helps the sauce set slightly so it does not run all over the plate when you serve

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Last month I made this for a friend who swears she hates spinach. She cleaned her plate and asked for seconds, then spotted the green flecks and paused mid-fork. Now she asks for the recipe every time she visits.

Make It Lighter

Half-and-half substitutes beautifully for heavy cream if you want to cut some richness without sacrificing the velvety texture that makes this dish work so well.

Vegetarian Twist

Sautéed mushrooms or roasted bell peppers add such satisfying substance that nobody misses the chicken, especially when they are coated in that pesto cream sauce.

Serving Suggestions

A crisp green salad with acidic dressing cuts through all that cream perfectly, and honestly, a cold glass of white wine does not hurt either.

• Crusty bread for mopping up sauce
• Extra basil leaves for color
• Lemon wedges on the side

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There is something deeply satisfying about pulling this bubbling dish out of the oven and watching everyone lean in a little closer.

Recipe FAQs

→ Can I make this ahead of time?

Yes, assemble the entire dish up to 24 hours in advance, cover tightly, and refrigerate. Add 5-10 minutes to baking time if baking cold from the refrigerator.

→ What pasta shapes work best?

Short pasta with ridges or tubes like penne, rigatoni, or fusilli capture the creamy sauce beautifully. These shapes hold onto the pesto coating and provide great texture in every bite.

→ Can I use store-bought rotisserie chicken?

Absolutely! A store-bought rotisserie chicken works perfectly and saves significant prep time. Simply shred the meat and you're ready to assemble.

→ How do I store leftovers?

Store cooled leftovers in an airtight container in the refrigerator for 3-4 days. Reheat in the microwave with a splash of cream or milk to restore creaminess, or bake at 350°F until heated through.

→ Can I freeze this dish?

Yes, freeze before baking for up to 3 months. Thaw overnight in the refrigerator, then bake as directed. Already-baked portions can also be frozen and reheated, though the pasta texture may soften slightly.

→ What can I substitute for heavy cream?

Half-and-half creates a lighter version while still maintaining creaminess. For a dairy-free option, full-fat coconut milk works, though it will impart a subtle coconut flavor to the final dish.