I've seen this one all over the place lately. It's really easy and good, however I only use half of each of the envelopes because it seems too salty otherwise.
3 Envelope Crockpot Chicken
1 envelope dry ranch dressing mix
1 envelope dry Italian dressing mix
1 envelope dry chicken gravy mix
1 cup water
Boneless, skinless chicken breasts
1. Put the chicken in the crockpot.
2. Add dry ingredients and water.
3. Cook on low 7 to 8 hours, or high 4 to 5 hours.