Name: Creamy Pesto Chicken Pasta Bake
Prep time: 20 min
Cook time: 25 min
Total time: 45 min
Cuisine: Italian
Ingredients: 12 oz. pasta of choice; 1 lb. boneless, skinless chicken breasts, cubed; 1 Tbsp. Italian seasoning; 1 tsp. paprika; 1 1/4 tsp. kosher salt, divided; 1/2 tsp. black pepper; 1 to 2 Tbsp. extra-virgin olive oil; 3/4 cup minced shallots; 4 garlic cloves, minced; Pinch of crushed red pepper flakes; 1 cup jarred roasted tomatoes, thinly sliced; 2 to 3 handfuls fresh baby spinach; 1/2 cup pesto; 1/2 cup heavy cream; 1/2 cup freshly grated Parmigiano-Reggiano cheese, divided; 3 to 4 oz. fresh mozzarella cheese, torn; Chopped fresh basil for garnish

This hearty pasta bake combines tender chicken and baby spinach in a rich, garlic-infused pesto sauce. It is a streamlined one-pan meal that delivers a restaurant-quality dinner in under an hour.

List of ingredients

12 oz. pasta of choice – tube shapes like rigatoni, mezzi rigatoni, or tortiglioni are recommended to hold the sauce.
1 lb. boneless, skinless chicken breasts – cut into bite-sized cubes.
1 Tbsp. Italian seasoning – provides a blend of dried herbs.
1 tsp. paprika – adds color and a mild earthy flavor.
1 1/4 tsp. kosher salt – divided for chicken and vegetables.
1/2 tsp. black pepper – freshly ground for better flavor.
1 to 2 Tbsp. extra-virgin olive oil – used for sautéing.
3/4 cup minced shallots – provides a subtle, sweet onion flavor.
4 garlic cloves – minced finely.
Pinch of crushed red pepper flakes – for a hint of heat.
1 cup jarred roasted tomatoes – thinly sliced, or substitute with 1/2 cup julienned sun-dried tomatoes.
2 to 3 handfuls fresh baby spinach – added for nutrients and color.
1/2 cup pesto – a high-quality basil pesto.
1/2 cup heavy cream – creates the creamy base of the sauce.
1/2 cup freshly grated Parmigiano-Reggiano cheese – divided between the sauce and topping.
3 to 4 oz. fresh mozzarella cheese – torn into small pieces.
Chopped fresh basil – used for the final garnish.

step-by-step instructions

Cook the Pasta: Boil your chosen pasta in generously salted water until it is just shy of al dente. Before draining the noodles, reserve 1 cup of the starchy pasta cooking water.
Season the Chicken: Place the cubed chicken in a large bowl. Toss with 2 tablespoons of oil from the roasted tomatoes jar (or olive oil), Italian seasoning, paprika, 3/4 tsp salt, and 1/2 tsp black pepper.
Sauté the Meat: Heat a large oven-safe skillet over medium heat. Add the chicken and sauté until fully cooked through, which usually takes about 8 minutes. Transfer the cooked chicken to a separate bowl.
Cook Aromatics and Veggies: In the same skillet, add minced shallots and cook until soft, about 3 minutes. Stir in the minced garlic and red pepper flakes, cooking for 1 minute until aromatic. Stir in the sliced roasted tomatoes and baby spinach, cooking until the spinach wilts (about 2 to 3 minutes), then season with the remaining 1/2 tsp salt.
Build the Sauce: Stir the pesto and heavy cream directly into the skillet with the vegetables.
Combine Pasta and Sauce: Add the cooked pasta and 1/2 cup of the reserved pasta water to the pan. Stir continuously until the sauce thickens and coats the pasta. Add more pasta water if needed until the consistency is thick and creamy. Stir in 1/3 cup of the Parmigiano-Reggiano and the sautéed chicken.
Broil and Finish: Preheat your oven broiler to HIGH. Scatter the torn mozzarella and the remaining Parmigiano-Reggiano over the top. Place the skillet under the broiler for 3 to 4 minutes until the cheese is melted and bubbly. Garnish with fresh basil before serving.

Optimal Pasta Selection for Pesto Sauce

Rigatoni and Tortiglioni

These tube-shaped pastas are ideal because they have wide centers and exterior ridges. The sauce and small pieces of spinach or tomato get trapped inside and along the ridges, ensuring every bite is flavorful.

Penne and Ziti

Penne is a reliable alternative that provides a similar structure to rigatoni. Its slanted ends help the creamy pesto sauce cling to the noodle without sliding off.

Fusilli and Rotini

Spiral pastas are excellent for thicker sauces. The twists create pockets that capture the heavy cream and pesto, making them a great choice if you prefer a more concentrated flavor in every mouthful.

Protein Substitutions and Alternatives

Using Chicken Thighs

Substitute chicken breasts with boneless, skinless chicken thighs for a juicier result. Thighs are more forgiving during the sautéing process and provide a richer flavor profile to the bake.

Turkey or Chicken Sausage

For a different taste, use sliced chicken sausage or ground turkey. If using sausage, brown the slices first before proceeding with the aromatics to ensure a caramelized exterior.

Plant-Based Protein Options

Replace the meat with canned navy beans or chickpeas for a vegetarian version. Rinse the beans thoroughly and toss them in the seasoning blend before adding them to the pan toward the end of the vegetable sauté.

Vegetable Customizations and Add-ins

Adding Fresh Peas

Stir in a cup of frozen peas along with the spinach. They add a pop of sweetness and extra color that complements the green of the pesto perfectly.

Using Kale Instead of Spinach

If you prefer a heartier green, use chopped kale. Since kale is tougher than spinach, add it a few minutes earlier in the sauté process to ensure it softens sufficiently.

Incorporating Sautéed Mushrooms

Add sliced cremini or button mushrooms after the chicken is removed from the pan. Sauté them until browned before adding the shallots to introduce an earthy umami flavor to the dish.

Mastering the Creamy Sauce Texture

The Role of Reserved Pasta Water

Pasta water contains starch that acts as an emulsifier. Adding it to the pesto and cream prevents the sauce from separating and helps it bind to the noodles for a glossy finish.

Adjusting Sauce Thickness

If the sauce feels too thick, stir in the remaining reserved pasta water one tablespoon at a time. If it is too thin, let it simmer for an additional minute before adding the cheese.

Substituting Heavy Cream

For a slightly lighter version, you can use half-and-half. Note that this will result in a thinner sauce, so you may need to simmer it slightly longer to achieve the desired thickness.

Pesto Quality and Selection

Choosing Store-Bought Pesto

Look for pestos that list extra-virgin olive oil and fresh basil as the primary ingredients. Avoid brands with excessive fillers or artificial preservatives to maintain a vibrant, fresh taste.

Using Homemade Pesto

Homemade pesto provides the freshest flavor. Blend fresh basil, pine nuts, garlic, Parmigiano-Reggiano, and olive oil in a food processor until smooth but slightly textured.

Nut-Free Pesto Alternatives

If you have a nut allergy, swap the pine nuts in your pesto for toasted sunflower seeds or pumpkin seeds. This maintains the creamy texture without the risk of allergens.

Equipment and Prep Advice

Choosing the Right Skillet

A cast-iron or stainless steel skillet is best because they are oven-safe and distribute heat evenly. Ensure the skillet is large enough to toss the pasta without spilling.

The Importance of Freshly Grated Cheese

Always grate your Parmigiano-Reggiano from a block. Pre-grated cheeses often contain anti-clumping agents like cellulose, which can prevent the cheese from melting smoothly into the sauce.

Organizing Your Mise en Place

Prepare all minced garlic, chopped shallots, and measured spices before turning on the heat. This recipe moves quickly, and having everything ready prevents the garlic from burning.

Storage and Preservation

Refrigerating Leftovers

Store leftover pasta in an airtight container in the refrigerator for up to 4 days. Ensure the pasta is cooled slightly before sealing the lid to prevent excessive condensation.

Freezing Instructions

You can freeze this bake either before or after it is broiled. Place portions in freezer-safe bags or containers for up to 3 months, removing as much air as possible to prevent freezer burn.

Thawing Process

Thaw frozen pasta in the refrigerator overnight. This slow thaw preserves the texture of the chicken and the consistency of the cream sauce better than rapid thawing.

Reheating for Optimal Taste

Oven Reheating

For larger portions, transfer the pasta to a baking dish and cover with foil. Heat at 350°F (175°C) until warmed through, which preserves the toasted quality of the cheese.

Microwave Reheating

For single servings, heat in the microwave using short intervals. Add a splash of water or milk before heating to revive the creaminess of the pesto sauce.

Adding Moisture During Reheating

Pasta tends to absorb sauce as it sits. Stir in a teaspoon of water or a small knob of butter during reheating to restore the luscious texture of the original dish.

Troubleshooting Common Issues

Preventing Watery Spinach

Add the spinach at the very end of the vegetable sauté and cook only until wilted. Overcooking spinach causes it to release too much water, which can thin out your pesto sauce.

Fixing Overly Salty Sauce

If the sauce tastes too salty, add an extra splash of heavy cream or a squeeze of lemon juice. The fat and acidity help balance the saltiness of the pesto and parmesan.

Avoiding Burnt Cheese

Keep a close eye on the broiler, as cheese can go from melted to burnt in seconds. Move the oven rack to the middle position if your broiler is exceptionally powerful.

Frequently Asked Questions

Can I use a different type of cheese?

Yes, you can use Provolone or Fontina instead of mozzarella for a different flavor profile. For the hard cheese, Pecorino Romano is a great alternative to Parmigiano-Reggiano, though it is saltier.

Is it possible to make this gluten-free?

Absolutely. Use your favorite gluten-free pasta, such as those made from brown rice, chickpeas, or lentils. Follow the pasta package directions for cooking times.

Can I add more vegetables?

You can add diced zucchini or bell peppers. Sauté them along with the shallots until tender before adding the garlic and spinach to ensure they are fully cooked.

What if I don’t have shallots?

Substitute shallots with finely diced yellow onion or sweet onion. Shallots are milder, so if using a stronger onion, you may want to reduce the quantity slightly.

How do I keep the chicken tender?

Do not overcook the chicken during the initial sauté. Once it reaches an internal temperature of 165°F, remove it from the pan immediately and let it finish warming through in the sauce.