Creamy Pesto Chicken Pasta Bake

My kitchen still smells like basil and garlic every time I make this, reminding me of that rainy Tuesday when I threw it together on a whim. The cheese was bubbling away in the oven while my roommate kept wandering in, asking if it was ready yet. We ended up eating it straight from the baking dish on the living room floor while watching a terrible movie. Sometimes the best meals happen when you are not really trying.

I brought this to a potluck last winter and watched three different people ask for the recipe before they even finished their first serving. My friend Sarah texted me at midnight that same night saying her husband was already begging her to make it again. There is something about that golden, bubbling cheese topping that makes people immediately feel at home.

Ingredients

• 12 oz short pasta: Penne or rigatoni work best because the ridges catch all that creamy sauce in every bite
• 2 cups cooked chicken breast: Rotisserie chicken from the grocery store is my secret weapon for busy weeknights
• 1 cup heavy cream: This creates that luxurious, restaurant quality texture that makes the dish feel special
• 1/2 cup basil pesto: Store bought is perfectly fine, but homemade hits differently if you have the time
• 1/2 cup freshly grated Parmesan cheese: Buy the wedge and grate it yourself, it melts so much better than the pre shredded stuff
• 1/2 cup chicken broth: This thins the sauce just enough so it coats the pasta without being too heavy
• 2 cloves garlic, minced: Fresh garlic makes all the difference, do not be tempted to use the jarred stuff here
• 1/2 tsp black pepper and 1/4 tsp salt: Start here and adjust, the pesto and Parmesan already bring plenty of saltiness
• 1 cup cherry tomatoes, halved: They burst in the oven and release these little pockets of sweetness throughout the dish
• 1 cup baby spinach: It wilts down to almost nothing but makes you feel slightly better about all that cheese
• 1 cup shredded mozzarella cheese: Low moisture cheese melts better without making the dish too watery
• 1/4 cup freshly grated Parmesan cheese: This extra layer on top creates that irresistible golden crust

Instructions

Get your oven ready:

Preheat to 375°F and grease a 9x13 inch baking dish with butter or cooking spray

Cook the pasta:

Boil the pasta for about 2 minutes less than the package says, it will finish cooking in the oven later

Make the creamy base:

Simmer the heavy cream, pesto, broth, garlic, salt, and pepper in a large skillet for 2 to 3 minutes while stirring occasionally

Add the cheese:

Stir in the Parmesan until it is completely melted and the sauce looks smooth and glossy

Combine everything:

Add the pasta, chicken, tomatoes, and spinach to the skillet and toss until every piece is coated in that gorgeous green sauce

Transfer to the dish:

Pour the mixture into your prepared baking dish and spread it into an even layer

Add the cheesy topping:

Sprinkle the mozzarella and extra Parmesan all over the top, covering the surface completely

Bake until golden:

Let it cook for 20 to 25 minutes until the cheese is bubbling and starting to turn golden brown in spots

Let it rest:

Wait about 5 minutes before serving, this helps the sauce set slightly so it is not too runny

Save

This recipe has saved me on countless busy weeknights when I want something comforting but do not have hours to spend cooking. My sister now makes it every Sunday for meal prep, and she says it is the only thing her teenage son actually gets excited about eating.

Make It Your Own

Sometimes I add sun dried tomatoes for an extra punch of flavor, or swap the spinach for arugula when I want something with a little peppery bite. The sauce base is so forgiving that you can really play around with what you have in the fridge.

Perfect Pairings

A crisp green salad with a bright vinaigrette cuts through all that rich creaminess perfectly. I also love serving this with some crusty garlic bread to soak up any extra sauce that might be left in the pan.

Make Ahead Magic

You can assemble the entire dish up to 24 hours in advance, just keep it covered in the refrigerator and add an extra 5 to 10 minutes to the baking time. This makes it perfect for dinner parties or when you know you are going to have a chaotic evening.

• Let the dish come to room temperature for about 20 minutes before baking if it has been in the fridge
• Cover loosely with foil for the first 15 minutes of baking if the top is browning too quickly
• The leftovers reheat beautifully in the microwave with a splash of milk to loosen the sauce

Save

This is one of those recipes that brings people to the table faster than anything else in my cooking arsenal. Hope it becomes a regular in your rotation too.

Your Questions Answered

→ Can I make this ahead of time?

Yes, assemble the entire dish up to 24 hours in advance and refrigerate. Add 10-15 minutes to the baking time if baking cold from the refrigerator.

→ What pasta shapes work best?

Short pasta shapes with ridges or tubes like penne, rigatoni, or rotini capture the creamy sauce beautifully. Avoid long strands like spaghetti as they're difficult to serve in baked format.

→ Can I use jarred pesto?

Store-bought pesto works perfectly in this dish. Look for refrigerated varieties for the freshest flavor. If using nut-free pesto, double-check labels to ensure it meets your dietary needs.

→ How do I store leftovers?

Store cooled leftovers in an airtight container for up to 4 days. Reheat individual portions in the microwave or cover the baking dish with foil and warm at 350°F until heated through.

→ Can I freeze this dish?

Yes, freeze before baking. Assemble in a freezer-safe dish, wrap tightly, and freeze for up to 3 months. Thaw overnight in the refrigerator before baking as directed.

→ What can I serve with this bake?

A crisp green salad with vinaigrette cuts through the richness. Crusty garlic bread or roasted vegetables like asparagus and zucchini also make excellent sides. A glass of Sauvignon Blanc complements the flavors beautifully.