Heat a nonstick pan over medium-low heat
Add the longganisa to the pan
Pour a small amount of water into the pan, about 1/4 cup
Cover the pan and let the water simmer until it evaporates
Uncover the pan and let the longganisa continue cooking in its own fat
Turn the longganisa occasionally until browned on all sides
Cook until fully done and the internal temperature is safe
Serve hot with rice and eggs if desired