Chile Lime Chicken Tostadas in the slow cooker

INGREDIENTS

1 4 ounce can

diced green chilies

4 cloves

minced garlic

1 1/2 tbsp

chili powder

3 tbsp

lime juice

diced medium onion

lbs. boneless chicken breasts

1 can

fat free refried beans, warmed

tostada shells

Desired toppings such as: shredded lettuce, shredded cheese, salsa, light sour cream, sliced olives, guacamole