Slow Cooker Tomato Basil Chicken

Tender Slow Cooker Tomato Basil Chicken breasts resting in a rich red sauce, garnished with fresh basil and served over creamy polenta. Save
Tender Slow Cooker Tomato Basil Chicken breasts resting in a rich red sauce, garnished with fresh basil and served over creamy polenta. | cookingwithdarlene.com

This dish features tender chicken breasts that become incredibly succulent after simmering for hours in a robust tomato-based sauce. The combination of crushed and diced tomatoes creates a thick, hearty consistency, while fresh basil and dried herbs like oregano and thyme infuse classic Italian flavors throughout.

The slow cooker method allows the chicken to absorb all the savory depths of the sauce while remaining moist and fork-tender. For those who enjoy extra richness, a splash of heavy cream can transform the sauce into a creamy version that perfectly coats each piece.

Serve this comforting main over pasta, alongside creamy polenta, or with crusty bread to soak up every drop of the flavorful sauce. A sprinkle of Parmesan and fresh basil adds the finishing touches to this satisfying, gluten-free Italian-inspired dish.

I discovered this recipe during one of those chaotic weeks when cooking felt like just another chore. The house smelled incredible when I walked through the door after work, and I realized slow cookers have this magical way of making simple ingredients taste like something special.

My sister was visiting when I first made this, and she kept wandering into the kitchen asking if it was done yet. We ended up eating straight out of the slow cooker with wooden spoons because waiting to plate it properly seemed impossible.

Ingredients

  • Boneless skinless chicken breasts: These stay incredibly tender in the slow cooker, but thighs work beautifully too if you prefer darker meat
  • Salt and pepper: Simple seasoning that lets the tomato sauce shine
  • Crushed and diced tomatoes: The combination creates the perfect texture, some smooth and some with little chunks
  • Fresh onion and garlic: They melt into the sauce, building that classic Italian flavor base
  • Tomato paste: Concentrated tomato flavor that makes the sauce taste richer
  • Dried oregano and thyme: These herbs infuse the sauce while it cooks slowly
  • Fresh basil: Adding this near the end keeps its bright flavor intact
  • Heavy cream: Optional, but it transforms the sauce into something luxurious and velvety

Instructions

Season the chicken generously:
Sprinkle salt and pepper over both sides of each chicken breast, rubbing it in slightly to help it adhere
Start the layering:
Arrange the seasoned chicken in an even layer at the bottom of your slow cooker
Mix the sauce base:
Combine both cans of tomatoes, onion, garlic, tomato paste, herbs, sugar, red pepper flakes, and olive oil in a large bowl
Pour and cover:
Spread the tomato mixture evenly over the chicken so everything gets coated in that flavorful sauce
Let it cook slowly:
Cover and cook on LOW for 6 hours or HIGH for 4 hours, until the chicken is incredibly tender
Add the finishing touches:
Stir in the fresh basil during the last 30 minutes, along with the cream if you are using it
Serve it up:
Spoon the chicken and sauce over pasta, rice, or polenta with extra basil and Parmesan on top
A close-up view of Slow Cooker Tomato Basil Chicken in a slow cooker, with juicy shredded chicken and a tomato-basil sauce bubbling. Save
A close-up view of Slow Cooker Tomato Basil Chicken in a slow cooker, with juicy shredded chicken and a tomato-basil sauce bubbling. | cookingwithdarlene.com

This became our go-to Sunday dinner because it fills the house with such a welcoming aroma. Friends started asking for the recipe after one dinner party, and now it makes regular appearances at potlucks.

Make It Your Own

I have experimented with adding sun-dried tomatoes for extra intensity, and sometimes I throw in baby spinach during the last ten minutes. The cream is entirely optional but worth trying at least once.

Serving Suggestions

Rustic bread for soaking up the sauce is absolutely essential in my house. The sauce also pairs beautifully with polenta, which feels especially comforting on cold nights.

Leftovers And Storage

This actually tastes better the next day when the flavors have had even more time to meld together. I often make a double batch just to ensure we have plenty for lunches.

  • Store in airtight containers for up to four days
  • The sauce freezes beautifully for up to three months
  • Reheat gently on the stove with a splash of water or cream
Slow Cooker Tomato Basil Chicken plated alongside crusty bread and a glass of Chianti, perfect for a comforting Italian-inspired dinner. Save
Slow Cooker Tomato Basil Chicken plated alongside crusty bread and a glass of Chianti, perfect for a comforting Italian-inspired dinner. | cookingwithdarlene.com

There is something deeply satisfying about a meal that takes care of itself while you go about your day. This recipe reminds me that good food does not always have to be complicated.

Recipe Questions & Answers

Yes, boneless skinless chicken thighs work beautifully and often stay juicier during longer cooking times. Adjust cooking time slightly as thighs may need a bit less time to become tender.

Absolutely. Once cooled, portions can be stored in airtight containers for up to 3 months. Thaw overnight in the refrigerator and reheat gently on the stovetop or microwave.

Simply omit the heavy cream and skip the Parmesan garnish. The tomato basil sauce is naturally rich and flavorful on its own, making it completely dairy-free while still delicious.

This pairs wonderfully with pasta, polenta, mashed potatoes, or crusty Italian bread. A simple green salad with balsamic vinaigrette complements the rich flavors perfectly.

Baby spinach works well when added in the last 10 minutes. Bell peppers or mushrooms can also be added at the start, though they may become quite soft after hours of cooking.

Slow Cooker Tomato Basil Chicken

Tender chicken breasts slow-cooked in a rich tomato basil sauce with Italian herbs for an effortless, comforting meal.

Prep 15m
Cook 360m
Total 375m
Servings 4
Difficulty Easy

Ingredients

Chicken

  • 4 boneless, skinless chicken breasts (1.5–2 lbs)
  • 1 teaspoon salt
  • ½ teaspoon freshly ground black pepper

Sauce

  • 1 (28 oz) can crushed tomatoes
  • 1 (14 oz) can diced tomatoes, drained
  • 1 medium yellow onion, finely chopped
  • 4 garlic cloves, minced
  • 1 tablespoon tomato paste
  • 1 teaspoon dried oregano
  • 1 teaspoon dried thyme
  • 1 teaspoon sugar
  • ½ teaspoon red pepper flakes
  • 2 tablespoons olive oil
  • ½ cup fresh basil leaves, finely chopped
  • ½ cup heavy cream or half-and-half

To Serve

  • Freshly grated Parmesan cheese

Instructions

1
Season the Chicken: Season chicken breasts thoroughly with salt and pepper on both sides.
2
Arrange in Slow Cooker: Place seasoned chicken in the bottom of the slow cooker.
3
Prepare Sauce: Combine crushed tomatoes, diced tomatoes, onion, garlic, tomato paste, oregano, thyme, sugar, red pepper flakes, and olive oil in a large bowl. Mix until well incorporated.
4
Add Sauce to Chicken: Pour tomato mixture evenly over the chicken in the slow cooker.
5
Cook: Cover and cook on LOW for 6 hours or HIGH for 4 hours, until chicken reaches internal temperature of 165°F.
6
Add Finishing Ingredients: During the last 30 minutes of cooking, stir in chopped fresh basil and heavy cream if making a creamy version.
7
Adjust Seasoning: Taste sauce and adjust salt, pepper, or herbs as needed.
8
Serve: Serve hot, garnished with additional basil and Parmesan cheese. Accompany with rice, pasta, or crusty bread.
Additional Information

Equipment Needed

  • Slow cooker (5–6 quart)
  • Chef's knife
  • Cutting board
  • Mixing bowl
  • Measuring spoons and cups

Nutrition (Per Serving)

Calories 350
Protein 44g
Carbs 15g
Fat 12g

Allergy Information

  • Contains dairy (if using cream or Parmesan)
  • Gluten-free as written
  • Always check labels on pre-packaged ingredients
Darlene Bennett

Sharing simple recipes and real-life cooking tips for home cooks.