In a heated nonstick pan ( I use Misen ) add onions, mushrooms and cactus, stir constantly to avoid it sticking to the pan. If needed add 1/4 cup of stock and turn heat down to medium
Once most of the liquid is absorbed add the rest of the ingredients, except the stock , continue cooking for 5 minutes on low heat
Add the remaining liquid, stir to incorporate, place a lid on the pan and let simmer for 10 minutes
Allow to cool prior to filling up the arepas
