The slow cooker lid lifts on a pot of deep red broth, and the chicken is tender enough to pull apart with two forks. Stir in the cream and Parmesan near the end, and the tomato base turns silky and rosy without losing its savory edge. That’s what makes Crockpot Chicken Parmesan Soup feel like a cozy bowl of chicken Parmesan, with penne tucked into every spoonful.
I build the soup around crushed tomatoes, chicken broth, tomato paste, and Italian seasoning, then let the chicken cook right in that seasoned base. The Parmesan brings a salty, nutty finish, while fresh basil brightens the whole pot. Cooking the pasta separately gives it a better bite, and adding the creamy ingredients at the end keeps the soup rich rather than heavy. Each bowl lands somewhere between a hearty tomato soup and a pasta dinner.
Kitchen Note
Shred the chicken as soon as it comes out of the slow cooker, while it’s still warm. Two forks pull it into tender strands quickly, and you can return it to the soup before finishing the pot.
Save Crockpot Chicken Parmesan Soup for a cozy dinner: tender shredded chicken, penne, and a creamy tomato-Parmesan broth.
Why Penne Goes in After the Slow Cooker, Not Before
Dry pasta seems like a natural shortcut in a slow cooker soup, but it keeps absorbing liquid as it sits. That can leave you with swollen, soft penne and a soup that has lost much of its broth. Cooking the pasta in a saucepan lets you stop at al dente, when the center still has a little firmness, instead of asking the noodles to guess their way through hours in hot liquid.
The slow cooker has a different job: it gives the chicken time to become tender and lets the tomato, broth, onion, garlic, and seasoning come together. Once the chicken is shredded, the cooked penne goes into the soup with the cream, Parmesan, and basil for a brief finish. That short final cook warms everything through and melts the cheese without leaving the pasta to simmer for hours. If you’re serving later, keeping the pasta separate until the soup is nearly ready also gives you more control over its texture.
What Gives This Tomato Broth Its Chicken Parmesan Character
- Chicken breasts — Boneless, skinless breasts cook directly in the tomato broth and shred neatly for spoonfuls with chicken throughout. Thighs are a workable swap if you prefer richer, darker meat. Use thawed chicken so it cooks evenly in the slow cooker.
- Crushed tomatoes and tomato paste — Crushed tomatoes make the soup’s base, while tomato paste adds concentrated tomato depth. A familiar canned brand is fine; choose crushed tomatoes with a texture you like, and stir the paste well into the liquid so it doesn’t sit in a lump.
- Chicken broth — Broth brings savory depth and keeps the tomato base loose enough to become soup. Boxed broth works well here; a more flavorful broth makes a noticeable difference because it forms such a large part of the liquid.
- Onion, garlic, and Italian seasoning — These build the familiar savory backbone without requiring a separate sauté. Dice the onion evenly and mince the garlic so both disperse through the broth. A standard dried Italian seasoning blend is practical; fresh garlic gives the brightest aroma.
- Penne — Its short tubes hold onto the soup, and its shape stays easy to eat by the spoonful. Use regular dried penne for the stated stovetop timing; a gluten-free version is covered below because it may need a different boil time.
- Heavy cream — Cream softens the acidity of the tomatoes and gives the broth a smooth, full texture. Half-and-half can stand in for a lighter result, though the soup will be less rich and a little thinner.
- Finely grated Parmesan and fresh basil — Fine shreds disperse more readily through the hot soup than large curls. A wedge grated just before adding it melts especially well; Pecorino Romano makes a sharper, saltier alternative. Fresh basil gives the finish a clean, aromatic lift that dried basil won’t quite match.
Build the Soup in Four Stages for Tender Chicken and Firm Pasta
Start the Tomato Broth in the Slow Cooker
Add the thawed chicken, diced onion, minced garlic, crushed tomatoes, chicken broth, tomato paste, Italian seasoning, kosher salt, black pepper, and crushed red pepper flakes to a 6-quart slow cooker. Stir to combine, spreading the tomato paste through the liquid as you go. The chicken cooks in that seasoned broth, so there’s no separate browning step. Keep the lid on during the long cook so the slow cooker can hold its heat.
Cook Until the Chicken Shreds Easily
Cover and cook on LOW for 5 to 6 hours or HIGH for 3 to 4 hours, until the thickest part of the chicken reaches 165°F. Check the thickest piece with an instant-read thermometer rather than relying on the clock alone. Transfer the chicken to a plate and shred it with two forks. Return the strands to the slow cooker and stir them through the tomato broth.
Boil the Penne Separately
Bring 2 quarts of water to a boil in a 4-quart saucepan, then add the penne. Cook it for 10 to 12 minutes, until al dente; it should be tender but still hold its shape. Drain the pasta well before it goes into the slow cooker. Don’t leave it sitting in the cooking water, where it will keep softening.
Finish with Cream, Parmesan, and Basil
Stir the drained pasta, heavy cream, finely grated Parmesan, and chopped fresh basil into the slow cooker. Cover and cook on HIGH for about 10 minutes, until the cheese has melted and the soup is hot. The broth should look creamy and evenly colored, without visible clumps of cheese. Once it’s hot, serve rather than leaving the finished pasta in the cooker for an extended hold.
Three Easy Changes for a Different Bowl of Chicken Parmesan Soup
Make It Gluten-Free with Gluten-Free Penne
Swap in gluten-free penne and boil it separately according to its package directions until just al dente. Gluten-free pasta can soften faster than regular penne, so check it early and drain promptly before stirring it into the finished soup.
Turn Up the Red Pepper
Use more crushed red pepper flakes in the slow cooker for a warmer, livelier broth. The heat builds alongside the tomatoes as they cook, so keep the increase modest if you want the Parmesan and basil to stay in the foreground.
Swap Parmesan for Pecorino Romano
Finely grate Pecorino Romano in place of the Parmesan for a sharper, saltier finish. It keeps the soup in the same Italian-inspired lane but makes the cheese more assertive, so taste the broth before adding any extra salt.
Storage and Reheating
- Refrigerator: Refrigerate leftovers in shallow, airtight containers within 2 hours and use them within 3 to 4 days. The penne will continue to absorb broth and become softer.
- Freezer: The finished soup’s pasta and cream can lose their best texture after freezing. For better results, freeze the tomato-chicken base before adding pasta, cream, Parmesan, or basil, in freezer-safe containers for up to 3 months; thaw it in the refrigerator, then make the pasta and finish the soup fresh.
- Reheating: Warm leftovers gently on the stovetop over medium-low heat, stirring often, until hot throughout. Add a little warm chicken broth if the soup has thickened, and avoid a hard boil, which can make the creamy broth less smooth.
Questions That Come Up While Making Crockpot Chicken Parmesan Soup
Crockpot Chicken Parmesan Soup
Ingredients
Equipment
Method
- Put the chicken, onion, garlic, crushed tomatoes, chicken broth, tomato paste, Italian seasoning, salt, black pepper, and red pepper flakes in a 6-quart slow cooker; stir to combine.
- Cover and cook on LOW for 5 to 6 hours or HIGH for 3 to 4 hours, until the chicken reaches 165°F in the thickest part.
- Transfer the chicken to a plate.
- Shred the chicken with two forks and return it to the slow cooker.
- Bring the water to a boil in a 4-quart saucepan.
- Add the penne and cook for 10 to 12 minutes until al dente.
- Drain the pasta.
- Stir the pasta, heavy cream, Parmesan, and basil into the slow cooker.
- Cover and cook on HIGH for about 10 minutes, until the cheese has melted and the soup is hot.