Once you have gathered all of the ingredients it's only a matter of assembling the tostada. You first (gently) spread a layer or the refried beans over the tostadas. Then sprinkle the chicken over the beans, then the lettuce, cheese, and radishes. Laslty and right before serving top with the salsa and sour cream, if using. It is important to have all of the ingredients ready to use. The reason is that the tostadas can become soggy and break if let to sit to long -- so serve straight away!
Notes
*I used leftover chicken but you can boil or sauté some boneless chicken breast to use too. You can even use beef (steak) or pork if desired.
**Depending on how thick the beans are you may need to thin them down with a bit of water so they are easier to spread over the tostadas.
!For a vegetarian version replace the meat with your favourite vegetarian protein or simply omit it.
Recipe by Spicie Foodie ™ at https://www.spiciefoodie.com/2014/12/05/chicken-tostadas-with-charred-tomatillo-and-serrano-salsa/