Not fried at all in fact. The name is lost in translation. In Spanish the name of this dish is Frijoles refritos which translates as recooked beans. This is a must when we have fajitas at home, I have adapted a recipe from Hugh Fearnley Whittingstall’s Veg recipe book.
In a frying pan, heat a little oil and throw in a couple of handfuls of frozen diced onions, a good shake of frozen garlic (or fresh or from a jar) and gently sauté. If you have a fresh tomato then grate it into the pan or use a tomato from a can or some diluted tomato puree. If you like a bit of spice then a sprinkle of smoked paprika or cayenne pepper can be added.
Drain and rinse a can of kidney beans then add them to the pan. Gently heat them while mashing them with a fork or wooden spoon. When they are hot they are ready.
They can be served with thick slices of wholemeal toast with a little grated cheese. Or eat them with warmed corn or wheat tortillas with some stir fried frozen veggies. If you have some yoghurt or creme fraiche then a spoonful of either is perfect. If you have opened a can of tomatoes then another tomato or two could be turned into a bit of salsa. You might prefer a bit of hot sauce. A sprinkle of frozen coriander is a nice touch.