Refried Beans with Flour Tortillas and Pickled Red Onions

I do most of the cooking in my house, not because my wife isn’t a really good cook (she is), but because I just enjoy it a lot more than she does. When I used to go away on trips and she stayed home, I would pretty reliably return to find a half-opened can of refried beans in an otherwise empty fridge. This always struck me as a little melancholy until …