There’s something deeply satisfying about starting dinner in the afternoon and letting the slow cooker quietly handle the rest. Slow Cooker Creamy Tomato Basil Chicken Breast is exactly that kind of meal: tender chicken simmered in a rich tomato cream sauce with garlic, Italian herbs, fresh basil, and a generous sprinkle of Parmesan
It tastes like something you might order at a cozy Italian restaurant, but the actual prep is refreshingly simple. No complicated techniques, no mountain of dirty pans, and definitely no standing over the stove while everyone asks, “Is dinner ready yet?”
As Chef Omar, I’m always looking for recipes that deliver serious flavor without demanding your entire evening. This one checks every box. Add pasta, mashed potatoes, rice, or some crusty bread, and you have a comforting family dinner that feels a little fancy without creating extra work.
Table of Contents
Why You’ll Love This Slow Cooker Creamy Tomato Basil Chicken Breast
- Quick Prep: A few minutes of mixing and your slow cooker takes over from there.
- Family-Friendly: Creamy tomato sauce, tender chicken, and Parmesan create familiar flavors both kids and adults can enjoy.
- Simple Ingredients: Everything is easy to find at a regular grocery store, and several ingredients may already be in your pantry.
- Perfect for Busy Days: Get dinner cooking earlier, then come back to a hot meal when your evening gets hectic.
- Easy to Customize: Serve the chicken with pasta, rice, potatoes, vegetables, or bread depending on what your family loves.
- Big Comfort-Food Flavor: Garlic, tomato, cream, basil, and Parmesan create a rich sauce without complicated cooking techniques.
Ingredients You’ll Need
One of my favorite things about this recipe is how a short ingredient list turns into such a luxurious sauce. Here’s what you’ll need:
- 1 (14-ounce) can diced tomatoes with Italian herbs, with juice: These create the flavorful tomato base.
- 1 cup marinara sauce: Choose a marinara you already enjoy because its flavor will come through in the finished dish.
- 3 cloves garlic, finely minced: Fresh garlic gives the sauce a savory backbone.
- 1 teaspoon salt: Brings all those tomato and herb flavors together.
- 1 teaspoon Italian seasoning: An easy shortcut for adding classic Italian-inspired flavor.
- ½ teaspoon dried basil: Adds another layer of herbal flavor while everything cooks.
- ¼ teaspoon black pepper: Just enough to balance the creamy sauce.
- ½ cup heavy whipping cream: This transforms the tomato sauce from everyday to silky and rich.
- 2 tablespoons cornstarch: Helps thicken the sauce so it beautifully coats the chicken.
- 4 boneless, skinless chicken breasts (about 2 pounds): The hearty centerpiece of the meal.
- 2 tablespoons finely chopped fresh basil: Stirred in at the end for fresh color and aroma.
- Grated Parmesan cheese: For serving—and I’m certainly not going to stop you from adding an extra spoonful.
How to Make Slow Cooker Creamy Tomato Basil Chicken Breast
1. Build the Tomato Sauce
Add the diced tomatoes and their juice to a 4- to 6-quart slow cooker. Pour in the marinara sauce, then add the minced garlic, salt, Italian seasoning, dried basil, and black pepper.
Give everything a good stir.
Already, you’ve done most of the difficult work—and “difficult” may be giving it too much credit.
2. Make It Creamy
In a small bowl, whisk together the heavy whipping cream and cornstarch until smooth.
Take a few extra seconds here to break up any cornstarch lumps. Nobody wants to discover a tiny floury island floating around in an otherwise glorious tomato sauce.
Pour the cream mixture into the slow cooker and stir it into the tomato mixture.
The cornstarch will help the sauce thicken as the chicken cooks, while the heavy cream softens the acidity of the tomatoes and gives everything that wonderful velvety finish.
3. Add the Chicken
Place the boneless, skinless chicken breasts into the sauce.
Press them gently downward so they are nestled into the tomato mixture. They don’t have to disappear completely, but giving them plenty of contact with the sauce helps them absorb those garlic, tomato, and herb flavors.
4. Let the Slow Cooker Work
Cover and cook on LOW for 3 to 4 hours.
Chicken breasts are lean, so avoid cooking them much longer than necessary. Unlike tougher cuts of meat, they don’t benefit from an all-day slow-cooker marathon.
Check the thickest portion of the chicken with an instant-read meat thermometer. The chicken is ready when it reaches 165°F.
Cooking by temperature rather than guesswork is one of those little kitchen habits that makes a big difference.
5. Finish With Fresh Basil
Once the chicken is cooked, stir the chopped fresh basil into the sauce.
Taste the sauce and adjust the salt, pepper, or Italian seasoning if needed.
Fresh basil goes in near the end because its bright flavor would become muted during several hours of cooking. Adding it now gives the creamy tomato sauce a fresh, fragrant finish.
Serve the chicken generously covered with sauce and top everything with grated Parmesan.
That Parmesan is technically a finishing touch, but in my kitchen, it tends to become a finishing handful.
What to Serve With Creamy Tomato Basil Chicken
The sauce is far too good to leave behind, so choose a side that can capture every spoonful.
Pasta is an obvious winner. Fettuccine, spaghetti, penne, or rigatoni all work beautifully. Spoon the creamy tomato basil sauce over the pasta and place the chicken on top for a complete Italian-inspired dinner.
Mashed potatoes are another excellent choice when you’re craving serious comfort food. The creamy tomato sauce and fluffy potatoes make an unexpectedly delicious pair.
For something lighter, serve the chicken with roasted broccoli, green beans, zucchini, asparagus, or a crisp green salad.
And then there’s crusty bread.
If you have a warm baguette or garlic bread nearby, use it to mop up the remaining sauce. Chef’s privilege says leaving good sauce on the plate should be strongly discouraged.
Chef Omar’s Tips for Tender, Flavorful Chicken
- Use similar-sized chicken breasts. They’ll cook more evenly, which helps prevent one piece from drying out while another finishes cooking.
- Don’t automatically cook the chicken all day. Three to four hours on LOW should be enough for many chicken breasts. Start checking the internal temperature around the three-hour mark.
- Whisk the cornstarch thoroughly. Combining it with the cream before adding it to the slow cooker prevents unpleasant lumps.
- Save the fresh basil for last. Dried basil can handle several hours of cooking. Fresh basil is much happier joining the party at the end.
- Taste before serving. Tomatoes and marinara sauces vary in saltiness and acidity, so give the finished sauce a taste before adding additional seasoning.
I first fell for meals like this because they create that “I definitely worked harder on dinner than I actually did” effect. When a simple combination of tomatoes, garlic, basil, and cream fills the kitchen with an incredible aroma, nobody needs to know how little hands-on work was involved.
That’s one of my favorite kinds of cooking: straightforward techniques, fresh flavors, and a result you’ll actually want to make again.
Frequently Asked Questions
Can I use frozen chicken breasts?
For best results and safer, more predictable cooking, thaw the chicken breasts before putting them into the slow cooker. Starting with thawed chicken also makes it easier to judge the cooking time.
How do I know when the chicken is finished?
Insert an instant-read meat thermometer into the thickest part of a chicken breast. It should reach 165°F before serving.
Can I use half-and-half instead of heavy cream?
You can experiment with half-and-half for a lighter sauce, but the finished texture may be thinner and less rich. Heavy whipping cream gives this recipe its signature creamy consistency.
What pasta goes best with this chicken?
Fettuccine and spaghetti are excellent for a silky sauce, while penne and rigatoni capture plenty of sauce inside their shapes. Use whatever is already waiting in your pantry.
Can I prepare this recipe ahead?
You can measure and prepare many of the ingredients ahead of time, but keep the chicken refrigerated until you’re ready to begin cooking. Leftovers also reheat well, making this a practical meal-prep option.
Why is my tomato cream sauce too thin?
Slow cookers trap moisture, so sauce consistency can vary. The cornstarch helps thicken it, but if your sauce still seems thin at the end, let it sit briefly after cooking and stir well before serving.
Make Tonight Deliciously Easy
Some dinners earn a permanent spot in the rotation because they solve several problems at once. They’re easy enough for Tuesday night, comforting enough for Sunday dinner, and impressive enough to serve when friends stop by.
Slow Cooker Creamy Tomato Basil Chicken Breast does exactly that.
You get tender chicken, garlicky tomato sauce, rich cream, fragrant basil, and Parmesan in every satisfying bite—all without babysitting a skillet for an hour.
Serve it over your favorite pasta, spoon it onto mashed potatoes, or bring out the crusty bread and let everyone clean their plates the old-fashioned way. However you serve it, this is the kind of simple, flavorful cooking I love sharing at PulseRecipes.
Grab that slow cooker and let dinner practically cook itself. Your kitchen is about to smell fantastic.
More Cozy Chicken Dinners You’ll Love
If this creamy tomato basil chicken earned a spot in your dinner rotation, there are plenty more comforting meals waiting for you at PulseRecipes. Here are four delicious recipes to try next:
- Craving more of that creamy tomato-and-chicken combination? Try our creamy tomato chicken recipe for another simple dinner packed with rich, savory flavor.
- For an easy meal with pasta built right in, this creamy tomato orzo with chicken brings tender chicken, creamy sauce, and satisfying orzo together in one cozy dish.
- If basil is your favorite part of this recipe, you’ll love the fresh Italian-inspired flavors in our lemon basil chicken recipe, a bright option for changing up your weekly chicken routine.
- Want another dinner that lets the slow cooker do the heavy lifting? Put this sun-dried tomato crockpot chicken on your menu next for another rich, tomato-packed chicken dinner.
Made this Slow Cooker Creamy Tomato Basil Chicken Breast? ⭐ Leave a star rating and review below! Tell us how it turned out, what you served with it, and whether your family went back for seconds. Your review helps other home cooks find their next favorite dinner, too!
Slow Cooker Creamy Tomato Basil Chicken Breast
- Total Time: 3 hours 10 minutes
- Yield: 4 servings 1x
Description
Tender Slow Cooker Creamy Tomato Basil Chicken Breast cooked in a rich tomato cream sauce with garlic, Italian herbs, and fresh basil. This easy slow cooker chicken dinner delivers comforting Italian-inspired flavor with minimal prep and is delicious served over pasta, rice, or mashed potatoes.
Ingredients
- 1 (14-ounce) can diced tomatoes with Italian herbs, with juice
- 1 cup marinara sauce
- 3 cloves garlic, finely minced
- 1 teaspoon salt
- 1 teaspoon Italian seasoning
- ½ teaspoon dried basil
- ¼ teaspoon black pepper
- ½ cup heavy whipping cream
- 2 tablespoons cornstarch
- 4 boneless, skinless chicken breasts (about 2 pounds)
- 2 tablespoons finely chopped fresh basil
- Grated Parmesan cheese, for serving
Instructions
- Prepare the sauce: Add the diced tomatoes with their juice, marinara sauce, garlic, salt, Italian seasoning, dried basil, and black pepper to a 4- to 6-quart slow cooker. Stir to combine.
- Add the cream: In a small bowl, whisk the heavy whipping cream and cornstarch together until smooth. Pour the mixture into the slow cooker and stir it into the tomato sauce.
- Add the chicken: Place the chicken breasts in the slow cooker and gently press them down into the sauce.
- Slow cook: Cover and cook on LOW for 3 to 4 hours, or until the thickest part of each chicken breast reaches an internal temperature of 165°F.
- Finish the sauce: Stir the fresh chopped basil into the sauce. Taste and adjust the salt, pepper, or Italian seasoning as needed.
- Serve: Spoon the creamy tomato basil sauce generously over the chicken and finish with grated Parmesan. Serve warm with pasta, rice, mashed potatoes, vegetables, or crusty bread.
Notes
- Use chicken breasts that are similar in size so they cook evenly.
- Avoid overcooking the chicken. Begin checking the internal temperature around the 3-hour mark.
- Whisk the cornstarch thoroughly into the cream before adding it to prevent lumps.
- Add fresh basil at the end of cooking for the brightest flavor and color.
- The sauce may thicken slightly as it rests.
- For a little heat, add a pinch of crushed red pepper flakes.
- Store leftovers in an airtight container in the refrigerator for up to 3–4 days.
- Reheat gently with the sauce to help keep the chicken moist.
- Prep Time: 10 minutes
- Cook Time: 3 hours
- Category: Dinner
- Method: Slow Cooker
- Cuisine: Italian-Inspired
Nutrition
- Serving Size: 1 chicken breast with sauce
- Calories: 520 kcal
- Sugar: 8 g
- Sodium: 1150 mg
- Fat: 21 g
- Saturated Fat: 10 g
- Unsaturated Fat: 8 g
- Trans Fat: 0 g
- Carbohydrates: 19 g
- Fiber: 3 g
- Protein: 65 g
- Cholesterol: 205 mg