Heat oil in a small pot over medium heat. Add the seasoned pork belly and saute for 2 minutes. Add the water and onion, (water should barely cover everything in a port) and let them boil. Bring the heat down a little and continue to cook until the onion is soft. Add the zucchini sticks and and garlic, and continue to cook for 2-3 minutes or until the zucchinis are almost tender. Season with anchovy sauce to your desired taste. Add the jalopeño and green onion and let it mingle for 1 minute. Remove the stew from heat and serve hot with rice.