Pesto Chicken Pasta Bake

The smell of pesto hitting a hot skillet is one of those small kitchen pleasures that makes the whole house feel alive on a rainy Tuesday evening. I threw this bake together once when friends canceled dinner plans and I had already defrosted chicken that refused to go back in the freezer. What started as a use it up kind of night turned into the dish my roommates texted me about for weeks afterward, asking when I was making that green pasta thing again.

I made a double batch of this for a potluck once and forgot to bring serving utensils, so we ended up scooping it directly onto paper plates with a spatula I found in the trunk of my car. Nobody cared because the cheese pull alone was enough to make everyone forget about the logistics.

Ingredients

• Penne or rigatoni (300 g): Short, ridged pasta shapes hold the pesto cream sauce far better than anything long and smooth, so do not be tempted to swap in spaghetti here.
• Boneless skinless chicken breasts (2, about 350 g): Cutting them into uniform bite sized pieces before cooking ensures nothing dries out while waiting for the thicker chunks to finish.
• Olive oil (1 tbsp): Just enough to get a sear on the chicken without making the whole dish greasy.
• Salt and black pepper: Season the chicken boldly before it hits the pan because underseasoned chicken is the fastest path to a flat tasting bake.
• Basil pesto (120 g): Store bought is perfectly fine, but check the ingredient list because some jars are mostly oil with barely any basil, and that will water down your flavor.
• Double cream or heavy cream (150 ml): This is what transforms pesto from a condiment into something that coats every noodle like a warm blanket.
• Garlic, minced (2 cloves): Fresh garlic mixed raw into the sauce gives a little bite that mellows beautifully in the oven.
• Sun dried tomatoes, chopped (50 g, optional): These little bursts of tangy sweetness break up the richness in the best way.
• Shredded mozzarella (100 g): Pull it into small pieces by hand if shredding yourself, because the uneven melts create those gorgeous browned patches on top.
• Grated Parmesan (40 g): A smaller amount than you think, but it concentrates into a salty, golden crust that makes the top layer completely irresistible.
• Fresh basil leaves: Torn over the top right before serving, and only if you happen to have some, because the bright green against the melted cheese looks stunning.

Instructions

Heat the oven:

Set your oven to 200 degrees C (400 degrees F) and lightly grease a large baking dish with a swipe of butter or oil so nothing sticks later when you are scraping out every last bit.

Boil the pasta:

Cook the penne in a big pot of well salted boiling water until just barely al dente, meaning it still has a slight firmness when you bite it, because it will soften further in the oven and you do not want mush.

Sear the chicken:

Heat olive oil in a skillet over medium heat, add the seasoned chicken pieces in a single layer without crowding, and let them sit undisturbed for a couple minutes until the bottoms turn golden before stirring.

Bring it all together:

In your largest mixing bowl, dump in the drained pasta, cooked chicken, pesto, cream, minced garlic, and sun dried tomatoes, then fold everything gently with a big spoon until every noodle is coated in that beautiful green sauce.

Assemble and top:

Spread the mixture into your prepared baking dish in an even layer, then scatter the mozzarella across the surface followed by an even dusting of Parmesan over the whole thing.

Bake until golden:

Slide the dish into the oven for about 20 minutes, and you will know it is ready when the edges are bubbling aggressively and the cheese on top has developed deep golden brown spots.

Rest and serve:

Pull it out and let it sit for a full five minutes before cutting into it, because the sauce needs a moment to settle back into the pasta rather than running everywhere when you scoop.

Save

There is something about carrying a bubbling dish from the oven to the table that makes everyone in the room go quiet in anticipation. That moment, when the cheese is still sizzling and the pesto smell has filled every corner, is the real reward for the forty minutes you just spent.

What to Serve Alongside

A simple arugula salad with lemon juice and olive oil cuts right through the richness of this bake without competing for attention. A glass of something crisp and white, maybe a Pinot Grigio that has been sitting in the fridge, turns a random weeknight dinner into something that feels planned.

Making It Your Own

My neighbor swaps the chicken for roasted mushrooms and zucchini and swears it is even better than the original, which I grudgingly admit might be true. A handful of breadcrumbs tossed on top before baking adds a crunch that contrasts beautifully with the creamy interior, and it takes almost zero extra effort.

Storing and Reheating

This bake reheats surprisingly well the next day, which is rare for cream based pasta dishes that usually split or dry out. I portion leftovers into containers for lunch and find they taste even more cohesive after the flavors have had overnight to mingle.

• Store covered in the fridge for up to three days and reheat in the oven at 180 degrees C until bubbling again, or use a microwave if you are okay with slightly softer texture.
• Freeze individual portions wrapped tightly for up to one month, though the cream sauce may separate slightly upon thawing.
• Always add a fresh scatter of Parmesan before reheating because it refreshes the top layer and makes it taste like it just came out of the oven.

Save

This is the kind of recipe you memorize after making it twice, and then it becomes one of those dishes you can pull together on autopilot while catching up with someone at the kitchen counter. Keep pesto in the fridge and pasta in the cupboard, and a comforting dinner is never more than fifty minutes away.

Common Recipe Questions

→ Can I use a different type of pasta?

Yes, any short pasta shape works well. Rigatoni, fusilli, farfalle, or cavatappi are all great choices that hold the pesto cream sauce nicely.

→ Can I make this ahead of time?

Absolutely. Assemble the dish completely, cover 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 fridge.

→ What's the best way to store leftovers?

Store leftovers in an airtight container in the refrigerator for up to 3 days. Reheat individual portions in the microwave or warm the whole dish in the oven at 180°C (350°F) until heated through.

→ Can I freeze pesto chicken pasta bake?

Yes, you can freeze it before or after baking. Wrap the dish tightly in foil and freeze for up to 2 months. Thaw overnight in the fridge before baking or reheating.

→ How can I make this vegetarian?

Replace the chicken with roasted vegetables like zucchini, bell peppers, and mushrooms. The rest of the dish stays the same and delivers equally satisfying results.

→ Can I use homemade pesto instead of store-bought?

Homemade pesto works wonderfully and often delivers fresher flavor. Classic basil, pine nut, and Parmesan pesto is ideal, but feel free to experiment with arugula or spinach-based variations.