Dinner · Part 2 of 3: Instructions
Slow Cooker Red Pesto Chicken with Melted Mozzarella Step-by-step instructions

- Prep
- Cook
- Total
- Serves
- 4
Before you start
Before starting, ensure all ingredients are ready and the slow cooker insert is clean and dry. Remove the chicken from the refrigerator about 20 minutes before cooking to take the chill off, but do not leave it out for longer than 30 minutes.
Ensure the mozzarella is sliced and the pesto is measured out. Having these components within reach makes the assembly phase quick and efficient, allowing for a seamless transition into the cooking phase.
Ingredients at a glance (4)
- 1.5 lb chicken breast pieces
- 8 oz mozzarella cheese, sliced
- 1 tsp dried herbs
- 1/2 cup red pesto sauce
Instructions
Base assembly
- Prepare the slow cooker basePlace the raw chicken breast pieces into the bottom of the slow cooker insert. Ensure the pieces are spread out in an even layer to promote uniform cooking throughout the process.Look for Chicken is arranged in a single layer at the bottom of the cooker.Tip Avoid overcrowding the slow cooker to ensure the chicken cooks through properly without becoming watery.
The chicken is evenly distributed across the bottom of the slow cooker. There is no visible pooling of liquid at this stage, and the chicken is clean and ready for the toppings.
Topping application
- Layer the flavor componentsArrange the slices of mozzarella cheese evenly over the chicken pieces. Sprinkle the dried herbs across the cheese and finally pour the red pesto sauce over the top. Do not stir the ingredients at this stage.Look for The pesto creates a vibrant red layer over the white cheese and chicken.Tip Use a small spatula to scrape all the pesto from the cup to ensure the full flavor is incorporated.
The mozzarella slices cover the chicken, and the red pesto is spread across the surface. The herbs are visible, and the slow cooker is now ready to be covered and turned on.
Cooking and finishing
- Cook and finishCover the slow cooker and cook on low for 4 hours until the chicken reaches an internal temperature of 165°F (74°C). Once finished, allow the chicken to rest for at least 5 minutes before serving.Look for The cheese is completely melted and bubbling, and the chicken is tender.Safe temperature 165°F (74°C) internal temperature (poultry)Tip Check the temperature at the thickest part of the largest chicken piece to ensure safety.
The kitchen smells savory and fragrant. The cheese has melted into the pesto, creating a rich, unified sauce. The chicken is tender and has reached the required safe internal temperature.
Common mistakes
A common mistake is overcooking the chicken, which can lead to a stringy texture despite the slow cooker environment. Always monitor the internal temperature closely toward the end of the cooking cycle.
Another error is stirring the ingredients before cooking; layering is crucial for the flavor development and texture.
Finally, failing to let the chicken rest for at least 5 minutes before serving can result in the loss of juices, making the meat feel drier on the plate.
How to tell it’s done
To determine if the chicken is done, use a meat thermometer inserted into the thickest part of the largest piece. The chicken must reach an internal temperature of 165°F (74°C).
The sauce should be bubbling and slightly thickened, and the mozzarella should be completely melted and integrated with the pesto. The chicken should pull apart easily with a fork, indicating it has reached the ideal level of tenderness.
- Poultry: 165°F (74°C) in the thickest part
Up next · Part 3 of 3
2 variations · storage & make-ahead · 3 answers · printable card
Tips, FAQ & printable recipe (Part 3)← Back to the ingredients (Part 1)