Slice the butter into 8 pieces and spread them out on the bottom of the crockpot. Place the chicken breasts on top of the butter.
Pour the lemon juice over the chicken. Sprinkle the italian dressing mix over the chicken. Add the garlic to your crock pot.
Cook and cover on High for 4-5 hours or on Low for 6-8 hours.
Serve with rice, pasta, veggies, or your favorite side.