Dinner · Part 2 of 3: Instructions
Crockpot Pepper Jack Fajita Chicken Thighs Step-by-step instructions

- Prep
- Cook
- Total
- Serves
- 6
Before you start
Before you start, make sure your slow cooker is clean and ready. Slice the bell peppers and red onion into thin strips. Measure out the salsa, queso blanco dip, and shredded pepper jack cheese.
If the queso blanco dip is cold, warm it in the microwave or on the stovetop for a few seconds so it pours easily. Have all your ingredients within reach, as the assembly takes just a few minutes.
Ingredients at a glance (11)
- 6 boneless skinless chicken thighs
- 3 sliced bell peppers (red, yellow, orange)
- 1 red onion, sliced
- 2 tbsp fresh lime juice
- 1 cup queso blanco dip, warmed
- 1 cup shredded spicy pepper jack cheese
- 1 cup salsa (store-bought or homemade)
- 1/2 tsp kosher salt
- 1/4 tsp black pepper
- Crispy tortilla chips, for serving
- Mexican rice, for serving
Instructions
Layer and Season
- Layer the Chicken and VegetablesPlace the boneless skinless chicken thighs in the bottom of a 6-quart slow cooker in a single layer. Scatter the sliced bell peppers and red onion over the chicken. Drizzle with fresh lime juice.Look for The chicken thighs should be spread out so they cook evenly.Tip If the chicken thighs are very large, you can trim them to fit, but no need to cut them small.
- Season the MeatSprinkle the kosher salt and black pepper evenly over the chicken and vegetables.Look for Seasoning now ensures the chicken is flavorful throughout.Tip Adjust the salt to your taste, but remember the queso and salsa add some saltiness.
At the end of this phase, you'll have a colorful arrangement of chicken thighs, bell peppers, red onion, and lime juice in the slow cooker, seasoned with salt and pepper. The chicken should be in a single layer, and the vegetables should be evenly distributed. This is the foundation for the flavor to come.
Add Sauces and Cook
- Add the Salsa and CheesePour the salsa over the chicken and vegetables. Then add the warmed queso blanco dip and sprinkle the shredded pepper jack cheese over the top. Do not stir.Look for The cheese should cover most of the surface; it will melt and create a creamy sauce.Tip Warming the queso before adding helps it melt smoothly into the sauce.
- Cook on LowCover the slow cooker and cook on low for 4 hours, or until the chicken is fork-tender and cooked through. Do not open the lid during the first 3 hours to keep the heat in.Look for The chicken should reach an internal temperature of 165°F (74°C).Safe temperature 165°F (74°C) internal temperature (poultry)Tip Cooking on low keeps the chicken moist; high heat can make it tough.
After adding the salsa, queso, and pepper jack, the slow cooker will look like a cheesy, saucy mess—that's perfect. As it cooks, the cheese will melt and the sauce will become creamy.
The aroma of peppers, onions, and cheese will fill your kitchen. After 4 hours, the mixture should be bubbling and the chicken tender.
Shred and Serve
- Shred the ChickenOnce the chicken is cooked, use two forks to shred it directly in the slow cooker. Stir everything to combine with the sauce and vegetables.Look for The chicken should shred easily and be coated in the creamy sauce.Tip Shredding in the cooker helps the chicken absorb the sauce.
- Serve and EnjoyServe the fajita chicken over crispy tortilla chips or with Mexican rice. Use a slotted spoon to serve if there is extra sauce.Look for The dish is best served warm, with the sauce bubbling and the cheese stretchy.Tip Garnish with fresh cilantro or a squeeze of lime if desired (optional).
When you shred the chicken, you'll see it's moist and easily pulls apart. The sauce should be thick and creamy, coating the chicken and vegetables. The peppers will be soft but not mushy. Serve it over chips or rice, and enjoy the stretchy, cheesy goodness.
Common mistakes
One common mistake is opening the slow cooker lid too often during cooking, which lets out heat and extends the cooking time. Resist the urge to peek for at least the first 3 hours.
Another is using low-quality cheese that doesn't melt well, resulting in a grainy sauce. Stick with queso blanco and pepper jack. Also, avoid over-stirring before cooking, as this can break up the chicken too much and create a mushy texture.
How to tell it’s done
The chicken is done when it reaches an internal temperature of 165°F (74°C) on an instant-read thermometer. It should be fork-tender and shred easily. The sauce should be bubbly and the cheese fully melted.
If the chicken is not yet tender after 4 hours on low, continue cooking in 30-minute increments until it is. Always check the temperature in the thickest part of the thigh.
- Poultry: 165°F (74°C) in the thickest part
Up next · Part 3 of 3
4 variations · storage & make-ahead · 5 answers · printable card
Tips, FAQ & printable recipe (Part 3)← Back to the ingredients (Part 1)