This slow-cooker Italian chicken is tender and saucy—the chicken braises in a concentrated tomato base while broccoli, asparagus, and snap peas finish crisp-tender. Pesto-coated zucchini noodles add a bright, fresh contrast so every bite is saucy but not soggy.
It’s mostly hands-off: about 5–6 hours on low to soften the chicken, then a short second cook to finish the vegetables. Perfect for a busy weeknight, make-ahead dinners, or a simple low-carb main to serve family-style.
Why You’ll Love This Recipe
A true set-and-forget slow-cooker meal that still delivers layered texture—rich, broken-down tomatoes and tender chicken paired with crisp-tender vegetables and bright pesto-coated zucchini noodles.
If you like slow-cooker tomato-sauce recipes, try Crockpot Tomato Soup for a comforting starter or similar hands-off comfort. This recipe’s two-stage approach is what keeps the sauce rich and the vegetables perfectly textured.
Ingredients You’ll Need
How to Make Slow-Cooker Italian Chicken
- Whisk the chicken broth, tomato paste, and Italian seasoning together in the bottom of your slow cooker to create an even flavor base and prevent the paste from burning at the start.
- Season the chicken breasts with salt and pepper and arrange them in a single layer in the slow cooker. Top the chicken with the roughly chopped tomatoes, spreading them in an even layer so they’ll break down evenly into sauce.
- Cover and cook on low until the chicken is tender and no longer pink inside—plan for about 5–6 hours, though exact time varies with slow-cooker model and chicken thickness.
- Remove the chicken and set aside on a plate. Use a potato masher to mash the tomatoes and any juices in the slow cooker until they form a chunky sauce; this step concentrates flavor and makes a spoonable base.
- Add the broccoli, asparagus, and snap peas (all the remaining vegetables except the zucchini) to the mashed tomato sauce and stir until coated. Return the chicken to the top, cover, and cook until the vegetables are crisp-tender, about another 45 minutes to 1 hour.
- While the chicken finishes, place the zucchini noodles in a colander over a bowl, sprinkle lightly with salt, and toss to coat. Let them sit 20–30 minutes, tossing occasionally to encourage them to release water.
- Spread the zucchini noodles on paper towels and press or pat out as much moisture as you can. Transfer the drained noodles to a large bowl and toss gently with the 1/2 cup pesto so they’re evenly coated but not saturated.
- Divide the pesto-coated zucchini noodles between 4 bowls, top each with a cooked chicken breast, and spoon the vegetable and tomato sauce over the chicken. Finish with a sprinkle of Parmesan and chopped fresh basil.
Stage Vegetables for Texture
This recipe uses a two-stage cook so the heartier veg can soften while more delicate zucchini remains bright. Add broccoli, asparagus, and snap peas only after the chicken has tenderized, then return the chicken and finish cooking for a short time.
The staging minimizes overcooking and preserves contrasting textures in the final bowl.
- Add broccoli and asparagus in the second stage because they need direct contact with the hot sauce to cook through.
- Halve snap peas so they heat through quickly and keep a pleasant snap.
- Never add zucchini to the slow cooker—reserve spiralized zucchini for tossing fresh with pesto.
Drain Zucchini Noodles
Properly draining zoodles is the single most important step to avoid a watery final plate. Salt draws out excess water; then pressing removes the liquid released.
Doing this step while the chicken finishes in the slow cooker makes the prep efficient and keeps the noodles from over-sitting.
- Place zoodles in a colander over a bowl, sprinkle with salt, and toss gently.
- Let sit 20–30 minutes, tossing occasionally to distribute salt and release more water.
- Pat or press dry on paper towels or cheesecloth until mostly dry before tossing with pesto.
Pesto Tossing Tips
Toss zucchini noodles with 1/2 cup pesto just before serving so the herbs and oil stay bright and the noodles retain a pleasing bite.
Reserve a spoonful of the slow-cooker sauce to drizzle if you like the extra tomato flavor on the zoodles.
- Use a light hand when tossing so the pesto coats but doesn’t saturate the noodles.
- If store-bought pesto is salty, start with a little less and add more to taste.
Tips for Success
Watch the chicken, not just the clock: Slow-cooker heat and chicken thickness vary—start checking doneness at 5 hours if your breasts are thin, and add time if they’re very large.
Prevent watery zucchini noodles: Salt the zoodles, let them sit 20–30 minutes, then press or pat them dry with paper towels; skipping this leads to a soggy bowl.
Keep zucchini separate until serving: Don’t add zucchini to the slow cooker—its high water content will dilute the sauce and make the noodles limp.
Adjust vegetable timing for your texture preference: If you prefer firmer veg, shorten the second cook by 10–15 minutes; for softer veg, allow the full 45–60 minutes.
Save This Recipe
More Recipes You’ll Love
Frequently Asked Questions
Ready to Serve
Plate each bowl with a nest of pesto-coated zucchini noodles, top with a chicken breast, and spoon the chunky tomato-vegetable sauce over everything. Finish with grated Parmesan and fresh basil for a bright, Italian finish.
This slow-cooker method makes busy evenings easier while still delivering fresh, layered textures—leftovers reheat well when components are stored separately.
Slow-Cooker Italian Chicken with Zucchini Noodles (Gluten-Free + Low-Carb)
Equipment
- Slow cooker
- colander
- Potato masher
- Large bowl
Ingredients
- 1/2 cup chicken broth reduced-sodium
- 4 teaspoons tomato paste
- 1 teaspoon Italian seasoning
- 1 pound chicken breast
- Salt and pepper
- 2 large tomatoes roughly chopped, about 3 cups
- 2 cups broccoli cut into bite-sized pieces
- 1 1/2 cups asparagus about 1 large bunch
- 1 cups snap peas halved
- 4 large zucchinis spiralized using the 3mm-blade
- Salt
- 1/2 cup pesto use your favorite
- Parmesan cheese for garnish
- Fresh basil for garnish, chopped
Instructions
- In the bottom of your slow cooker whisk together the 1/2 cup reduced-sodium chicken broth, 4 teaspoons tomato paste, and 1 teaspoon Italian seasoning.
- Season the chicken breast with salt and pepper and lay in a single layer in the slow cooker, then add the 2 large tomatoes (roughly chopped, about 3 cups) in an even layer on top of the chicken.
- Cover and cook on low until the chicken is tender and no longer pink inside, about 5-6 hours.
- Remove the chicken from the slow cooker and place on a plate. Using a potato masher, mash the tomatoes in the slow cooker until they break down into a sauce. Add all remaining vegetables except the zucchini and stir to coat them in the tomato sauce, then place the chicken breast back on top, cover, and cook until the vegetables are tender, about another 45 minutes to 1 hour.
- When the chicken is almost done cooking, place the 4 large zucchini spiralized noodles into a colander set over a large bowl, sprinkle lightly with salt, and toss to coat. Let them sit 20-30 minutes, tossing occasionally, until they release some water.
- Spread the zucchini noodles over a large piece of paper towel and pat out as much excess moisture as possible, then place the noodles into a large bowl and toss to coat evenly with 1/2 cup pesto.
- Divide the zucchini noodles between 4 bowls, place a chicken breast on top of each, and spoon the vegetable and tomato sauce over the chicken and zucchini noodles.
- Garnish each bowl with Parmesan cheese and chopped fresh basil.
