Dice and saute the white onion in olive oil on medium heat.
While the onion sautees, open the polenta and dice it up into small pieces or slices.
Add the broth to the pan and begin to incorporate the polenta.
Add a few pieces of polenta at a time and stir it into the broth with a wooden spoon or whisk. Try to break up the polenta pieces with the utensil of your choice.
As the polenta breaks up, add the remainder of the tube and incorporate it into the broth.
Add shredded cheese of your choice -- mozzerella worked well for me -- and mix it all together.
Add salt and pepper to taste.