Chicken Tostadas with Slow Cooker Chicken

recipe slow cooker shredded chicken (, recipe found below)

(8-inch) flour or corn tortillas

oil for frying or baking tortillas ((I like to use half vegetable oil & half olive oil))

Tostada toppings:

prepared refried (, pinto or black beans (if using canned from 2 - 15 oz cans)*)

shredded cheese (, such as Cheddar and Monterey Jack (cotija is also good))

head Romaine lettuce (, chopped)

avocados (, diced)

Roma tomatoes (, diced)

sour cream

Optional toppings:

chopped red or green onions (, cilantro and fresh limes for juicing or cilantro lime ranch dressing, hot sauce)