Pour some olive oil into a saucepan. When the oil gets hot, throw in a handful of roughly chopped onions and a couple of garlic cloves, also chopped, and fry until transluscent and fragrant.
Empty a can of undrained black beans into the oil. Add herbs (I throw in whatever I have because I love herbs: thyme, coriander, mint, oregano, basil, a couple of bay leaves, like that). Season with salt and freshly ground pepper. Stir and simmer until the stew is heated through. Add a dash of lemon juice and some avocado before serving.
It gets even better if left overnight.
Makes two servings.
Note: I have no measurements because I threw it all together. Use your good judgment!