Soak the dried okazi leaves for about 10 minutes, wash, and drain.
In a medium-sized saucepan, boil the meat seasoned with salt, pepper, Maggi, and onions until tender. It takes 20-40 minutes, depending on the cut of meat. You can shorten this process to half with a pressure cooker. Reserve the stock.
Boil the cow skin and tripe together or separately until tender. Drain the water from the cow skin and tripe.
Combine all the meat and smoked fish in a large pot with 1-2 cups of stock.
If using smoked fish, pick out the bones, cut it into chunks, and add it to the pot of meat. Cook for 3-5 minutes.
Pulse the okazi leaves in a food processor with a little water to make them pliable. Repeat the same process with the chopped fresh spinach.
Stir in the oil, Maggi, and crayfish. Cover and simmer for 3-5 minutes.
Add the okazi leaves to the pot, stir, add the spinach, and stir again.
Simmer for 5-10 minutes. Then, adjust seasonings with salt, pepper, and Maggi.
Serve hot with eba, pound yams, or fufu.