Slow Cooker Creamy Tomato Basil Chicken delivers tender chicken breasts in a rich, creamy tomato sauce with fresh basil flavor. This dump-and-go crockpot recipe takes just 5 minutes to prep and serves a family of 4-6 perfectly.

Why You’ll Love This Recipe
This slow cooker chicken shines with juicy results and minimal effort. The creamy sauce clings to every bite without curdling, thanks to a simple cornstarch trick. Families rave about its comforting taste over pasta or rice.
| Aspect | Details |
|---|---|
| Prep Time | 5 minutes |
| Cook Time | 3-4 hours |
| Servings | 4-6 |
| Calories | ~400 per serving |
| Cuisine | Italian-inspired American |
Ingredients
Gather these pantry staples for success. Images of each help visualize portions.
- 4 boneless skinless chicken breasts (about 2 lbs; thighs work too)
- 1 can (14 oz) diced tomatoes with Italian herbs (with juice)
- 1 cup marinara sauce (choose a well-seasoned brand)
- 3 cloves garlic, minced
- 1 tsp salt
- 1 tsp Italian seasoning
- 1/2 tsp dried basil
- 1/4 tsp black pepper
- 1/2 cup heavy whipping cream (or evaporated milk)
- 2 tbsp cornstarch
- 2 tbsp fresh basil, finely chopped
- Grated Parmesan cheese, for serving
Substitutions: Use chicken thighs for juicier dark meat (add 30 min cook time). Swap diced tomatoes for extra marinara if you prefer smooth sauce. Coconut cream works for dairy-free.
![Ingredients laid out for slow cooker creamy tomato basil chicken: canned tomatoes, marinara, cream, chicken breasts, garlic, and herbs on a white counter]
Step-by-Step Instructions
Follow these numbered steps for foolproof results. Use a 4-6 quart slow cooker.
- Add diced tomatoes, marinara sauce, minced garlic, salt, Italian seasoning, dried basil, and pepper to the slow cooker. Stir to combine.
![Tomato sauce and seasonings mixed in slow cooker]
- In a small bowl, whisk heavy cream and cornstarch until smooth. Pour into the slow cooker and stir well.
![Cream and cornstarch whisked together]
- Nestle chicken breasts into the sauce, pressing down to submerge. Cover and cook on low for 3-4 hours, until chicken reaches 165°F internally (check at 2.5 hours for smaller breasts).
![Raw chicken breasts added to sauce in slow cooker]
- Shred chicken lightly with two forks (optional for easier serving). Stir in fresh basil. Taste and adjust seasoning. Serve hot with Parmesan.
![Finished creamy tomato basil chicken in slow cooker, garnished with basil]
Cook Time Note: Low for 3-4 hours keeps chicken tender. High needs 2-2.5 hours max; always use a meat thermometer.
Expert Tips for Success
- Line your slow cooker with a liner for zero cleanup.
- Avoid low-fat milk or half-and-half; they curdle with tomatoes. Stick to heavy cream or evaporated milk.
- All slow cookers vary; check early to prevent dry chicken.
- Double the sauce for leftovers by adding an extra cup marinara.
Serving Suggestions
Spoon over spaghetti, rice, or mashed potatoes to soak up the sauce. Pair with a green salad or garlic bread.
- Pasta night: Toss with penne or spaghetti.
- Rice bowl: Serve over white or brown rice.
- Low-carb: Enjoy standalone with steamed broccoli.
![Sliced chicken over pasta with creamy sauce and basil garnish]
Variations
Customize for your crew.
- Veggie boost: Add spinach or baby potatoes in step 3.
- Spicy kick: Stir in red pepper flakes with seasonings.
- Dairy-free: Use full-fat coconut cream.
- Instant Pot: Same ingredients; saute garlic first, pressure cook 10 min high, quick release, then add cream.
Storage and Freezing
Leftovers keep 3-4 days in the fridge. Reheat gently on stovetop with a splash of cream. Freeze in airtight containers up to 3 months; thaw overnight before reheating.
Nutrition Facts (Per Serving)
Approximate values based on 6 servings.
| Nutrient | Amount |
|---|---|
| Calories | 400 |
| Protein | 35g |
| Carbs | 12g |
| Fat | 22g |
| Fiber | 2g |
| Sugar | 6g |
Frequently Asked Questions
How long to cook chicken breasts in the crockpot?
Aim for 3 hours on low until 165°F. Smaller breasts may finish at 2.5 hours.
Can I use half-and-half or milk?
Heavy cream or evaporated milk resists curdling best. Low-fat options may separate.
What kind of tomato pasta sauce?
Any marinara or Italian-seasoned jarred sauce works; avoid plain crushed tomatoes.
Can I put raw chicken in the slow cooker?
Yes, that’s the beauty of dump-and-go recipes like this one.
Slow Cooker Creamy Tomato Basil Chicken Breast
Tender chicken breasts in a creamy tomato basil sauce made in the slow cooker. Dump-and-go recipe with pantry staples, ready in 3-4 hours. Serve over pasta or rice for busy weeknights. Family favorite with juicy chicken and rich sauce that doesn’t curdle.
Minimal prep time and foolproof results every time!
- Prep Time: PT10M
- Cook Time: PT3H
- Total Time: PT3H10M
- Yield: 4 1x
- Category: Dinner
- Method: Slow Cooker
- Cuisine: Italian
Ingredients
4 boneless skinless chicken breasts (about 2 lbs)
1 can (14 oz) diced tomatoes with Italian herbs, undrained
1 cup marinara sauce
3 cloves garlic, minced
1 teaspoon salt
1 teaspoon Italian seasoning
½ teaspoon dried basil
¼ teaspoon black pepper
½ cup heavy whipping cream
2 tablespoons cornstarch
2 tablespoons fresh basil, finely chopped
Grated Parmesan cheese, for serving
Instructions
1. Prep the sauce base: Add diced tomatoes (with juice), marinara sauce, minced garlic, salt, Italian seasoning, dried basil, and black pepper to the slow cooker. Stir to combine.
2. Thicken the cream: In a small bowl, whisk heavy cream and cornstarch until smooth. Pour into the slow cooker and stir well.
3. Add the chicken: Nestle chicken breasts into the sauce, pressing down to submerge. Cover and cook on LOW for 3-4 hours or HIGH for 2-3 hours, until chicken reaches 165°F.
4. Finish and serve: Remove chicken, shred if desired, and return to sauce. Stir in fresh basil. Serve with Parmesan.
Notes
Cook on LOW 3-4 hours for juiciest results. Use meat thermometer for safety.
Heavy cream + cornstarch prevents curdling.
Slow cooker liners make cleanup easy.
Freezes well up to 3 months.
Substitute thighs for breasts (add 30-60 min).
Spicy option: Add ¼ tsp red pepper flakes.
Dairy-free: Use coconut cream.
Serve over pasta, rice, or zucchini noodles.
Store refrigerated 4 days; reheat gently with extra cream.
All slow cookers vary – check early.
Nutrition
- Serving Size: 1 chicken breast + ¼ sauce
- Calories: 380
- Sugar: 8
- Sodium: 920
- Fat: 18
- Saturated Fat: 10
- Unsaturated Fat: 6
- Trans Fat: 0
- Carbohydrates: 14
- Fiber: 2
- Protein: 42
- Cholesterol: 150
