In a pan combine Water and ground pork. Boil and simmer for 20 minutes or until the water evaporates and the fat oozes out from the pork.
Sauté the pork until golden brown. Add olive oil, garlic and onion. Sauté until cooked.
Add the tomatoes and water. Cover the pan and let it simmer for 10 to 15 minutes over low heat. Mash the tomatoes using the back of the wooden spoon and pour the remaining water.
Add the beef bouillon cube and simmer for 10 minutes. Add in the upo and simmer for 10 minutes.
Lastly, add the misua and season with ground black pepper and fish sauce. Simmer for anther 5 minutes.