Name: Creamy Pesto Chicken Pasta Bake Recipe
Prep time: 15 min
Cook time: 25 min
Total time: 40 min
Cuisine: Italian-American
Ingredients: 10 oz rigatoni (¾ of a 1 lb box); 1.5 lbs chicken tenderloins, diced; 1.5 tablespoons Italian seasoning; 2 tablespoons olive oil (divided); Salt and freshly ground black pepper, to taste; 1 medium yellow onion, diced; 4 garlic cloves, minced; 3 cups whole milk (can substitute half and half or cream for a richer sauce); 2 teaspoons Cajun seasoning; 1 teaspoon red pepper flakes (optional); 8 oz sun-dried tomatoes, oil drained; 1.5 cups broccoli florets (bite-sized); 2 cups baby spinach leaves; 2 tablespoons butter; Salt and freshly ground black pepper, about ½ tsp each for sauce; 1/3 cup prepared pesto; 1.5 cups shredded mozzarella cheese; 1 cup grated or shredded parmesan cheese

I absolutely adore sharing this Creamy Pesto Chicken Pasta Bake Recipe with friends and family because it has quickly become one of my go-to comfort meals. The rich, herbaceous pesto combined with tender chicken and perfectly cooked rigatoni creates a dish that’s both satisfying and easy to prepare. It’s creamy yet vibrant, warm and inviting, making it a recipe I’m always excited to cook and share.

Why You'll Love This Creamy Pesto Chicken Pasta Bake Recipe

For me, the flavor profile is what really makes this recipe stand out. I love how the pesto brings a fresh, herby punch that’s perfectly balanced by the creamy milk-based sauce. The addition of sun-dried tomatoes adds a tangy sweetness, and the slight heat from the Cajun seasoning and optional red pepper flakes gives just the right amount of kick without overpowering the dish. Every bite tastes layered yet harmonious.

What’s even better is how simple it is to prepare. I appreciate a recipe that feels a little indulgent but doesn’t require hours in the kitchen, and this one fits the bill perfectly. It’s a fantastic weeknight meal or great for a casual dinner party where you want something crowd-pleasing without the fuss. Honestly, once you make it, you’ll see why I keep coming back to this Creamy Pesto Chicken Pasta Bake Recipe again and again.

Ingredients You'll Need

A top-down view shows several bowls and a jar placed on a white marbled surface, each holding different colorful ingredients. One white bowl holds shredded pale yellow cheese with soft, thin strands piled high. Another white bowl contains bright green spinach leaves with a smooth, slightly shiny texture, while a third white bowl is filled with fresh, green broccoli florets showing detailed tiny buds. A small clear bowl holds finely chopped off-white garlic. Next to this, a white square bowl contains white chopped onion in irregular small pieces. A separate white bowl holds browned, cooked chicken pieces speckled with herbs. Near these, a small clear bowl holds dark red sun-dried tomatoes with a wrinkled surface. A white pitcher filled with fresh white milk is also visible. Scattered around everything are light yellow rigatoni pasta pieces with ridges. At the bottom left, a jar of green pesto sauce with a label stands upright. Photo taken with an iphone --ar 4:5 --v 7

The ingredients for this recipe are wonderfully straightforward but totally essential for achieving its delicious results. Each one plays a key role: from the rigatoni that carries all the creamy goodness, to the fresh veggies that add color and texture, to the cheese that guarantees a golden, melty finish.

Rigatoni (10 oz): Its tubular shape traps the creamy sauce beautifully in each bite.
Chicken tenderloins (1.5 lbs diced): Tender and quick to cook, perfect for soaking up the pesto flavors.

Italian seasoning (1.5 tablespoons): Adds a classic aromatic blend that complements the pesto perfectly.
Prepared pesto (⅓ cup): The star herbaceous component that infuses the dish with vibrant flavor.
Mozzarella (1.5 cups shredded): Creates that irresistibly gooey and bubbly cheese topping.

Parmesan (1 cup shredded or grated): Adds a salty umami boost and helps with browning on top.
Butter (2 tablespoons): For sautéing the onions and garlic, giving the sauce a silky richness.
Yellow onion (1 medium, diced): Brings sweetness and depth when sautéed.

Garlic cloves (4 minced): For aroma and a punch of savory flavor.
Cajun seasoning (2 teaspoons): Adds warmth and subtle spice — mine is a homemade blend I love.
Red pepper flakes (1 teaspoon, optional): For those who like a little extra heat.

Whole milk (3 cups): The base for a luxuriously creamy sauce (can be swapped for cream or half and half for even more richness).
Sun-dried tomatoes (8 oz, drained oil): Adds a zesty burst of flavor and chewy texture.
Broccoli (1.5 cups, bite-sized florets): For freshness and color, plus a nice crunch if you don’t overcook.

Baby spinach (2 cups): Wilted into the sauce, it gives an earthy green touch without overpowering.
Olive oil: Essential for cooking the chicken and veggies to perfection.
Salt and freshly ground pepper: To season and balance every component of the dish.

Directions

Step 1: Start by drizzling the chicken tenderloins with one tablespoon of olive oil and tossing them well to coat all sides evenly. Sprinkle the Italian seasoning, plus about one teaspoon each of salt and freshly ground pepper, over the chicken and toss again so every bite is packed with flavor.

Step 2: While prepping the chicken, bring a large pot of salted water to a rolling boil for the pasta. This way, your pasta cooks right alongside your chicken and sauce without wasting any time.

Step 3: Heat 2 tablespoons of olive oil in an oven-safe skillet over medium heat, enough to lightly coat the bottom. Add the chicken pieces and let them cook undisturbed for 4 to 5 minutes to develop a nice sear. Flip the chicken, reduce the heat to low, and continue cooking another 3 to 4 minutes, or until the chicken is cooked through. Then remove the chicken from the skillet and set it aside for now.

Step 4: In the same skillet, reduce the heat to medium-low and melt the butter. Add the diced onion and sauté it for 2 to 3 minutes until translucent and fragrant. Then toss in the minced garlic and cook just until you can smell its aroma, about 30 seconds to a minute — be careful not to burn it.

Step 5: Pour in the whole milk and stir in the Cajun seasoning, red pepper flakes (if using), and about half a teaspoon each of salt and pepper. Add the sun-dried tomatoes and broccoli florets, then bring everything up to a gentle simmer. Let it cook until the broccoli softens nicely, which usually takes about 5 minutes.

Step 6: Meanwhile, cook the rigatoni in the boiling water until al dente according to package instructions, usually about 8 to 10 minutes. Drain the pasta well when it's ready.

Step 7: Return to your sauce and stir in the baby spinach, letting it wilt completely into the creamy mixture. Now fold the cooked rigatoni and the seared chicken gently into the sauce, mixing until everything is evenly coated in that beautiful creamy pesto blend.

Step 8: Turn your oven’s broiler on to high. Generously sprinkle shredded mozzarella and parmesan cheese over the pasta in the skillet, then transfer it to the oven. Broil for 3 to 5 minutes, or until the cheese bubbles and starts to turn a gorgeous golden brown. Keep an eye on it to prevent burning!

Servings and Timing

This Creamy Pesto Chicken Pasta Bake Recipe serves about 4 people, making it ideal for small families or dinner with friends. Prep time is approximately 15 minutes, and cooking the chicken and sauce takes around 20 minutes. Add in 10 minutes for pasta cooking and broiling, and you’re looking at roughly 40 minutes total. I usually serve it right after broiling to enjoy it hot, but it can rest a few minutes if needed before digging in.

How to Serve This Creamy Pesto Chicken Pasta Bake Recipe

The image shows a close-up view of a cheesy baked pasta dish in a white pan on a white marbled surface. The dish has large rigatoni pasta tubes layered with melted golden-brown cheese on top, creating a bubbly and slightly crispy texture. Inside the pasta, there is a creamy mixture with visible green spinach leaves and pieces of browned chicken. The cheese layer is thick and stringy, stretching as a woman's hand lifts a spoonful from the pan, showing the rich, creamy texture underneath with specks of herbs throughout. photo taken with an iphone --ar 4:5 --v 7

When I serve this pasta bake, I love to pair it with something light and fresh to balance the creamy richness. A crisp green salad dressed with lemon vinaigrette works perfectly and adds a refreshing contrast. Roasted or steamed vegetables like asparagus or green beans are also great side options that complement but don’t compete with the hearty main dish.

For the finishing touch, I like to sprinkle some freshly chopped basil or a little extra parmesan on top before serving. Presentation-wise, serving this pasta straight from the skillet adds a cozy, rustic charm, but plating it in warm bowls works just as beautifully. Portion sizes of about one generous cup per person feel just right for a satisfying meal.

When it comes to drinks, I often reach for a chilled white wine like Sauvignon Blanc or Pinot Grigio to cut through the richness, or a lightly sparkling water with a twist of lime if I want to keep things alcohol-free. It’s a fantastic dish for weeknight dinners, casual gatherings, or anytime you want something comforting with a bit of flair served hot and fresh from the oven.

Variations

I like to mix things up with this recipe depending on what I have on hand or dietary preferences. For a gluten-free version, I simply swap the rigatoni for gluten-free pasta, which works beautifully without sacrificing texture. If you’re vegan, you can replace the chicken with sautéed mushrooms or tofu and use a dairy-free pesto along with plant-based milk and vegan cheese alternatives—the dish still turns out creamy and flavorful.

If you enjoy stronger spice, I sometimes bump up the Cajun seasoning or add extra red pepper flakes, which layers in more heat while keeping the pesto’s freshness front and center. For a different protein twist, shredded rotisserie chicken or grilled shrimp can be fantastic substitutes that save prep time and add unique flavor notes.

Lastly, instead of broiling, I’ve occasionally baked this dish at 375°F (190°C) for about 15 minutes to gently melt the cheese, which creates a softer, baked-in texture rather than the crispy top you get from broiling. Play around with these tweaks until you find your personal perfect version of the Creamy Pesto Chicken Pasta Bake Recipe.

Storage and Reheating

Storing Leftovers

I highly recommend storing any leftover pasta bake in an airtight container once it has cooled to room temperature. It keeps well in the refrigerator for up to 3 to 4 days. Using a glass or BPA-free plastic container helps maintain freshness and prevents the dish from absorbing any fridge odors.

Freezing

This pasta bake freezes quite well, which makes it a great make-ahead meal. To freeze, let the dish cool completely, then portion it into freezer-safe containers or heavy-duty zip-top bags. It will keep well for up to 2 months. When you're ready to enjoy, defrost overnight in the refrigerator for best results.

Reheating

To reheat, I prefer warming it in an oven at 350°F (175°C) for about 15 to 20 minutes until heated through, which helps keep the cheese melty and the sauce creamy without drying out. Alternatively, reheating in the microwave works fine for a quicker option—just cover the dish loosely and heat in 1-minute increments, stirring in between to ensure even heating. Avoid overheating to prevent the sauce from separating.

FAQs

Can I use a different type of pasta for this recipe?

Absolutely! While rigatoni works well because it holds the sauce inside its tubes, you can substitute with penne, ziti, or even fusilli. Just be sure to cook the pasta to al dente so it holds up well in the bake.

Is it okay to make this recipe ahead of time?

Yes, you can prepare the components up to step 7, then refrigerate the mixed pasta and sauce without the cheese topping. When ready to serve, sprinkle the cheeses on top and broil as directed. This makes for a convenient meal prep option.

Can I use store-bought Cajun seasoning?

Definitely! Store-bought Cajun seasoning works fine if you’re short on time. Just be mindful of the salt content and adjust additional salt in the recipe accordingly to keep flavors balanced.

What can I substitute for the sun-dried tomatoes?

If you don’t have sun-dried tomatoes on hand, chopped roasted red peppers or cherry tomatoes sautéed briefly in olive oil make great alternatives that still add color and a slightly sweet tang.

How spicy is this recipe with the Cajun seasoning and red pepper flakes?

The heat is moderate unless you add the optional red pepper flakes or increase the Cajun seasoning. It’s easy to adjust the spice level to your liking—either tone it down for kids or ramp it up if you love a little extra kick.

Conclusion

I truly hope you give this Creamy Pesto Chicken Pasta Bake Recipe a try soon because it’s one of those dishes that brings both comfort and excitement to the dinner table. It’s packed with wonderful textures and flavors, super easy to make, and always gets compliments when I serve it. Once you experience that creamy, cheesy, herby goodness yourself, I’m sure it’ll become a favorite in your home as well.