How do you get breastmilk spit up stains out of laundry?

Jurene
My baby girl has become a "juicy" baby and spits up quite frequently. She is a happy baby and doesn't fuss when she spits up so we aren't worried about any health issues. What I am struggling with is removing the spit up stains with the hardened fabric in our laundry. We have an HE machine so dish soap is not an option for us. How do you get rid of the stains?