Here's what I used:
1 lb Boneless Chicken Breast (No need to slice up, it will easily shred after cooking)
1/2 Fajita Seasoning Packet
1 cup Chicken Broth (I used homemade)
1 Green Pepper
1 Jalapeno Pepper
Place the chicken, seasoning packet, and chicken broth in the slowcooker. Cook on low for 8 hours. When I got home from work I shredded the chicken with two forks and added my sliced veggies to cook for about 30 min. We also added some black beans and taco sauce when putting together our fajitas. A super easy and delicious homemade dinner!
Below is the Slow Cooker that I have. It has a glass lid and a touch screen & it is awesome! I love mine!