Quick, creamy, and full of fresh herb flavor, Basil Pesto Alfredo Chicken Pasta is a 25-minute pressure cooker dinner with tender chicken, silky spaghetti, and a rich pesto-Alfredo finish that fits busy weeknights beautifully.

This is the kind of dinner you make when you want something comforting but do not want to stand over the stove juggling multiple pans. The pressure cooker does the heavy lifting, so you get juicy chicken and pasta in one streamlined meal.
What makes this dish work so well is the balance of flavors. Basil pesto brings brightness and that familiar herb-and-garlic punch, while Alfredo sauce adds body and a smooth, savory finish that clings to every strand of spaghetti.
It is also a practical meal for real life. You can pull it together fast, serve it straight from the pot, and still end up with a creamy pesto pasta that feels cozy enough for dinner but simple enough for a regular weekday.
What You Need to Make This Basil Pesto Alfredo Chicken Pasta
Spaghetti: This gives the dish its classic, comforting base. Once pressure cooked, it softens right into the sauce and carries the pesto and Alfredo especially well.
Chicken breasts: Diced chicken keeps the cooking time short and gives you tender, bite-sized pieces throughout the pasta instead of large chunks that feel separate from the dish.
Olive oil: A little oil helps the chicken brown on the sear setting and builds the first layer of flavor before the liquid goes in.
Garlic: Minced garlic adds a savory backbone that supports both the basil pesto and the Alfredo sauce without overwhelming either one.
Chicken broth: This is the cooking liquid for the pasta and also adds more depth than plain water, which helps the final dish taste fuller and more balanced.
Basil pesto: Pesto brings the fresh herb flavor that makes this pasta stand out. It adds brightness, richness, and that unmistakable basil-forward finish.
Alfredo sauce: This rounds everything out with creaminess. Combined with pesto, it creates a sauce that feels rich and smooth without needing a long simmer.

Cooking Steps
STEP 1: Set your pressure cooker to the sear function and warm the olive oil. Add the diced chicken and minced garlic, then cook until the chicken is lightly golden on the outside and the garlic smells fragrant.
STEP 2: Pour in the chicken broth and scrape up any flavorful bits from the bottom of the pot. Add the spaghetti and spread it out as evenly as you can so it cooks more consistently in the liquid.
STEP 3: Lock the lid and cook on the multi grain setting for 6 minutes. This short pressure cooking time softens the pasta while keeping the chicken tender enough to finish in the sauce later.
STEP 4: When the cycle ends, do a careful quick release. Open the lid once the pressure is fully gone, then drain off any extra liquid so the sauce stays creamy instead of thin.
STEP 5: Return the pasta and chicken to the pot. Stir in the basil pesto and Alfredo sauce until everything is evenly coated and the noodles take on that glossy green-and-cream finish.
STEP 6: Let the pasta rest in the warm pot for about 5 minutes before serving. That short stand time helps the sauce settle onto the spaghetti and gives the flavors a chance to come together.
Can I use a different pasta for this dish?
You can, but spaghetti is the most reliable choice for the method you provided. If you swap the pasta shape, the liquid level and pressure cooking time may need adjustment, so expect a little trial and error.
Should the pesto go in before pressure cooking?
No, it is better stirred in after the pasta is cooked and drained. That keeps the basil flavor fresher and prevents the pesto from dulling too much under pressure.
Can I use cooked chicken instead of raw chicken?
Yes, though the texture will be a little different. If you are using pre-cooked chicken, warm the garlic in the oil first, cook the pasta in the broth, then stir the chicken in with the pesto and Alfredo at the end.
Why let the pasta sit before serving?
That short rest makes a real difference. The sauce thickens slightly in the residual heat, and the pesto, Alfredo, and broth-based pasta all come together into a smoother, more cohesive finish.
Perfect Pairings
A crisp green salad is a great match here because it cuts through the richness of the sauce without competing with the basil and garlic flavors. A simple salad with lemony dressing works especially well.
Garlic bread or toasted bread on the side is always welcome with a creamy chicken pasta like this. It gives you something to swipe through the extra sauce left in the bowl.
If you want a vegetable side, roasted broccoli or green beans fit nicely. Their slight bite balances the softness of the spaghetti and adds a little color to the plate.

Helpful Tips
- Brown the chicken just until it gets some color. You do not need to cook it all the way through during the sear step because it will finish during pressure cooking.
- Stir the pesto and Alfredo in while the pasta is still hot so the sauce melts into the noodles more smoothly.
- Let the finished pasta rest for a few minutes before serving so the sauce has time to cling instead of pooling at the bottom.
Keeping Leftovers Fresh
Store leftover Basil Pesto Alfredo Chicken Pasta in an airtight container in the refrigerator for up to 3 days. Because this is a creamy pasta, it is best while the sauce is still fresh and smooth.
For reheating, warm individual portions gently on the stove or in the microwave. If the sauce has tightened up in the fridge, add a small splash of chicken broth or water before reheating so it loosens back into a creamy consistency.
Freezing is possible, but the texture of cream-based sauces can change once thawed. If you do freeze it, keep it well sealed for up to 1 month and reheat slowly after thawing in the refrigerator overnight.

Basil Pesto Alfredo Chicken Pasta
Ingredients
- 16 ounces spaghetti
- 2 tablespoons olive oil
- 2 chicken breasts diced
- 2 garlic cloves minced
- 2 cups chicken broth
- 1/3 cup basil pesto
- 1/3 cup Alfredo sauce
Instructions
- Set the pressure cooker to the sear function. Add the minced garlic along with the diced chicken breasts, and cook for several minutes until the chicken develops a golden-brown exterior.
- Pour the chicken broth into the pot, then add the spaghetti. Arrange the noodles so they are spread out evenly and fully covered by the liquid to promote uniform cooking.
- Secure the lid and lock it in place. Select the multi grain setting for 6 minutes, then start the cooking cycle. This step cooks the pasta while also keeping the chicken tender.
- When the cycle ends, carefully perform a quick release and allow all pressure to escape before opening the lid. Drain the pasta mixture to remove any remaining liquid.
- Place the drained noodles back into the pot. Add the basil pesto and Alfredo sauce, then stir gently until the pasta and chicken are thoroughly coated in a smooth, creamy sauce.
- Allow the pasta to sit in the warm pot for about 5 minutes so the sauce can heat through and the flavors can blend fully. Serve immediately while hot.