This cheesy chicken pesto pasta bake is the dish that completely transforms basil pesto from a simple condiment into the star of an entire spectacular baked dinner. Penne pasta and tender shredded chicken tossed in a rich creamy basil pesto sauce that gets its vibrant green color and bold herbal flavor from real basil, garlic, pine nuts, and Parmesan — all baked together with a generous blanket of golden mozzarella and additional Parmesan on top. I created this cheesy chicken pesto pasta bake at Golden Recipes when I wanted to elevate plain pesto pasta into something genuinely indulgent and substantial enough to feed a whole family — and the addition of heavy cream and cream cheese to the pesto base creates something that is simultaneously bright and herby from the basil and incredibly rich and luxurious from the dairy. This is the pasta bake that makes pesto lovers genuinely fall in love all over again.
Why You’ll Love This Cheesy Chicken Pesto Pasta Bake
The creamy pesto sauce is what makes this casserole so completely different from a simple plate of pesto pasta. Pure pesto on its own can sometimes taste oily and one-dimensional when eaten in large quantities — but blending it with heavy cream and cream cheese creates a sauce that is rounded, balanced, and incredibly silky while still tasting unmistakably like fresh basil pesto. The cream tames the intensity of the raw garlic and basil while the cream cheese adds body that makes the sauce cling beautifully to every piece of pasta and chicken rather than pooling at the bottom of the dish.
The combination of mozzarella and Parmesan baked on top is what gives this casserole its spectacular golden finish and that classic Italian cheese pull that makes every serving look and taste irresistible. As the casserole bakes the green pesto sauce bubbles up around the edges of the golden cheese crust creating a beautiful contrast of colors and an incredible aroma of basil, garlic, and toasted Parmesan that fills the entire kitchen. This is the dinner that makes people ask what smells so incredible the moment it goes into the oven. You should also try our Creamy Tuscan Chicken Pasta Bake and our Cheesy Chicken Broccoli Alfredo Bake for more incredible chicken pasta bakes.
Equipment You’ll Need
- Large pot for boiling pasta
- Large saucepan for the sauce
- 9×13 inch baking dish
- Whisk
- Measuring cups and spoons
Ingredients
- 3 cups cooked shredded chicken — rotisserie perfect
- 12 oz penne pasta
- 1 cup basil pesto — jarred or homemade
- 2 tablespoons butter
- 3 cloves garlic, minced
- 1½ cups heavy cream
- ½ cup chicken broth
- 4 oz cream cheese, softened and cubed
- 1 cup freshly grated Parmesan — divided
- ½ teaspoon red pepper flakes
- Salt and black pepper to taste
- 1 cup cherry tomatoes, halved
- 2½ cups freshly shredded mozzarella — divided
- Fresh basil and pine nuts for garnish
Substitutions
Homemade pesto gives the most vibrant fresh flavor — combine 2 cups fresh basil, ⅓ cup pine nuts, ½ cup Parmesan, 3 garlic cloves, and ⅔ cup olive oil in a food processor. Sun-dried tomatoes can replace cherry tomatoes. Add 2 cups fresh baby spinach for extra greens. Provolone can supplement mozzarella for a sharper flavor. For extra protein add cooked Italian sausage alongside the chicken. Half-and-half can replace heavy cream for a lighter sauce.
How to Make Cheesy Chicken Pesto Pasta Bake
Cook the Pasta and Make the Sauce
Preheat your oven to 375°F (190°C) and grease your 9×13 baking dish. Cook the penne 2 minutes less than package directions. Drain and set aside. Melt butter in a large saucepan over medium heat. Add garlic and cook 1 minute. Pour in heavy cream and chicken broth. Bring to a gentle simmer. Add cream cheese cubes and whisk until completely melted and smooth. Stir in the pesto, ¾ cup of Parmesan, red pepper flakes, salt, and pepper until fully combined. The sauce should be vibrant green and creamy.
Combine and Assemble
Add the cooked penne, shredded chicken, and 1½ cups of mozzarella to the pesto cream sauce. Fold gently until everything is coated. Transfer to your baking dish and spread evenly. Scatter the halved cherry tomatoes across the top. Scatter the remaining mozzarella and Parmesan generously across the entire surface.
Bake
Bake uncovered for 25 to 30 minutes until the cheese is deeply golden and bubbling and the cherry tomatoes have softened and slightly burst. Rest 5 minutes. Scatter fresh basil and toasted pine nuts across the top and serve immediately.
Variations
- Sun-dried tomato version — replace cherry tomatoes with ½ cup chopped sun-dried tomatoes
- Spinach addition — fold 2 cups fresh baby spinach into the pasta mixture before baking
- Shrimp version — replace chicken with cooked shrimp for a seafood pesto pasta bake
- Four cheese — add provolone and fontina alongside the mozzarella for extra complexity
- Roasted vegetable addition — add roasted zucchini and bell peppers to the filling
What to Serve With It
Warm garlic bread is absolutely essential for soaking up the pesto cream sauce. A simple arugula salad with lemon and shaved Parmesan is the perfect fresh contrast. For a complete Italian dinner party serve alongside our Balsamic Cherry Tomato Pasta as a second pasta option.
Pro Tips
- Cook pasta 2 minutes early — finishes in the oven
- Never boil the cream sauce — gentle simmer keeps it smooth
- Add cream cheese gradually — whisk continuously for lump-free sauce
- Toast pine nuts before garnishing — deepens their nutty flavor significantly
- Serve immediately — the vibrant green color is best fresh from the oven
Common Mistakes
- Boiling the cream sauce — basil can taste bitter if overheated too aggressively
- Overcooking pasta before baking — mushy result
- Using low-quality pesto — significantly impacts the final flavor
- Not draining cream cheese softening time — cold cream cheese creates lumps
- Skipping pine nut garnish — adds essential textural contrast
Storage and Reheating
Store covered fridge up to 3 days — pesto can darken slightly but flavor remains excellent. Reheat covered with foil at 350°F for 15 minutes. Microwave medium power. Does not freeze well as the cream sauce separates.
FAQ
Can I use store-bought pesto?
Yes — high-quality jarred pesto works perfectly and saves significant time. Costco and Trader Joe’s both carry excellent refrigerated pesto options that give results nearly as good as homemade.
Why does pesto sometimes turn brown when baked?
Basil oxidizes and darkens when exposed to heat and air for extended periods. The cream cheese and Parmesan in this recipe help stabilize the color somewhat, but expect the sauce to deepen slightly during baking — this does not affect the flavor.
Can I make this ahead?
Assemble completely and refrigerate up to 24 hours before baking. The pesto color may darken slightly overnight but the flavor remains excellent. Bake as directed adding 10 extra minutes.
Can I make the pesto from scratch?
Yes — combine 2 cups fresh basil leaves, ⅓ cup pine nuts, ½ cup grated Parmesan, 3 cloves garlic, and ⅔ cup olive oil in a food processor and blend until smooth. Season with salt to taste.
Conclusion
This Cheesy Chicken Pesto Pasta Bake transforms simple basil pesto into a completely indulgent and satisfying family dinner — vibrant creamy pesto sauce, tender chicken, burst cherry tomatoes, and golden mozzarella throughout. Make it tonight for a dinner that smells and tastes genuinely extraordinary.