Refried beans are one of those foods I like that I can't buy locally.
Thankfully, they're pretty easy to make.

1 can black beans or pinto beans, drained
    (you could cook your own beans too of course)
1/2 white onion, finely chopped
1/2 tsp cumin powder
1/4 tsp chilli powder
1/2 tsp salt
canola oil
a few drops of lime juice

(You can easily double the recipe if you want.)

Heat the oil in a large skillet. Add the spices. Once they begin to
bubble, add the onion and fry on medium heat for about a minute. Add the
beans and continue to fry for five minutes, adding more oil if
necessary. Remove from heat, add lime juice, and mash the beans with a
potato masher.

Best served fresh but will keep fine in the fridge for a few days.