Place fish in a large pot and cover with water.
On a small scale, you could grow them in a large pot.
Place the stock in a large pot over low heat.
Place a large pot over medium heat and add the oil.
Place in a large pot with the chicken stock and add water to cover.
Place the fish head and bones in a large pot.
Perhaps I'll find space for just one, in a large pot.
Put the potatoes in a large pot and cover with cold water.
Place all of the ingredients in one large pot or two small ones.
In a large pot, cover the beans with cold water.