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Dinner · Part 2 of 3: Instructions

Slow Cooker Chicken Philly Sandwiches Step-by-step instructions

A close-up of a slow-cooked chicken philly sandwich with melted provolone cheese on a toasted roll.
Prep
Cook
Total
Serves
4

Before you start

Before you begin, gather all your ingredients to streamline the assembly process. Slice the green bell peppers and onions into thin strips to ensure they cook down properly and integrate well with the chicken.

Ensure your chicken breast strips are clean and ready to go, and have your garlic powder and black pepper measured out for quick application.

Having the provolone cheese ready to be layered on top immediately after seasoning will keep the process efficient, allowing you to get the slow cooker started without any unnecessary delays in the kitchen.

Ingredients at a glance (6)
  • 1 1/2 lb chicken breast strips
  • 2 cups sliced green bell pepper
  • 1 cup sliced onion
  • 1 tsp garlic powder
  • 1/2 tsp black pepper
  • 4 slices provolone cheese

Instructions

Preparation and assembly

  1. Assemble the base
    Place the raw chicken breast strips into the bottom of the slow cooker basin. Arrange the sliced green bell peppers and sliced onions evenly over the top of the chicken to ensure even cooking during the process.
    Look for The chicken should be spread out in a single layer to allow for consistent heat distribution.
    Tip Keep the chicken strips uniform in size to ensure they cook at the same rate.

At the end of this phase, the chicken and vegetables are neatly arranged in the slow cooker. The ingredients should be distributed evenly to ensure that the heat circulates properly during the cooking cycle, setting the foundation for a consistent and flavorful final result.

Slow cooking process

  1. Season and layer
    Sprinkle the garlic powder and black pepper evenly over the chicken and vegetable mixture. Place the slices of provolone cheese on top of the vegetables. Cover the slow cooker with its lid and set to cook on low for 4 hours.
    Look for Ensure the cheese is fully covering the vegetables so it melts evenly into the juices during the cooking cycle.
    Safe temperature 165°F (74°C) internal temperature (poultry)
    Tip Resist the urge to open the lid during cooking to maintain the consistent internal temperature required.

During this phase, the ingredients are simmering under the lid. You will know this phase is progressing correctly if you can smell the savory aroma of the peppers and garlic beginning to permeate the kitchen, indicating that the flavors are successfully melding together.

Final integration and service

  1. Serve the dish
    Once the cooking cycle is complete, verify the chicken has reached an internal temperature of 165°F (74°C). Use a spoon to gently stir the mixture to combine the melted cheese with the chicken and tender vegetables before serving immediately on your favorite toasted rolls.
    Look for The chicken will look opaque and the vegetables will be soft, with the cheese fully incorporated into the sauce.
    Safe temperature 165°F (74°C) internal temperature (poultry)
    Tip Check the temperature in the thickest part of the largest chicken strip to ensure proper doneness.

When the cooking is finished, the mixture will appear unified with the cheese fully melted. The chicken will be fork-tender and the sauce will have thickened slightly, signaling that the dish is ready to be served immediately while hot.

Common mistakes

Avoid overcrowding the slow cooker with excessively thick pieces of chicken, as this can lead to uneven cooking and may require a longer time to reach a safe temperature. Another common mistake is failing to layer the ingredients in the specified order, which can prevent the flavors from melding correctly.

Ensure you do not lift the lid prematurely, as this releases critical heat and moisture, which can significantly extend the cooking time and dry out the chicken during the braising process.

How to tell it’s done

The dish is considered done when the chicken breast strips have reached an internal temperature of 165°F (74°C). At this point, the chicken will be opaque throughout and tender to the touch, while the bell peppers and onions should be soft and translucent.

The cheese will have melted into the surrounding juices, creating a cohesive and savory mixture that is ready to be scooped onto your choice of bread or rolls for serving.

  • Poultry: 165°F (74°C) in the thickest part

Coming up in Part 3: common questions

  • Can this recipe be made with chicken thighs instead of breasts?
  • What is the best way to prevent the chicken from becoming dry?
  • Can this dish be frozen for later use?

Also in Part 3: variations (Spicy Chicken Philly, Mushroom Chicken Philly), storage and make-ahead, and the printable recipe card.

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)