You can use any kind of tinned beans like haricot or cannellini, drain then well from the cans.
Cover with water and bring to the simmer.
Meanwhile medium chop and fry the onion.
Chop a pre-cooked sausage or ham and mix that with the onion just to heat it up
Add both the onion and the ham to the beans and the liquid.
Roughly bash some garlic and add it with the squeezed orange juice.
Leave it to cook gently for about 45 minutes. Keep an eye on the liquid level.
Add some greenery - like finely sliced cabbage, spring greens or spinach.
Season to taste.
Garnish with a dash of olive oil when serving.