Add all the patty ingredients in a large bowl then mix it well. Mold the patty ingredients into a round shape to make patties. (You can store some patties for later use. I normally cook 4 patties at one time. Wrap any unused patties with plastic wrap and put them into an air tight container. Then store them in the freezer until needed.)
Pre heat a frying pan on high heat. When it is heated enough, add some cooking oil (I used rice bran oil).
Add the patties and cook both sides on high heat for a short while. Then reduce the heat to medium to low and cook the inside of the patty well.
In a sauce pan, add the sauce and onion. Stir them around a little bit then add the patties. Simmer them well. (Don’t stack the patties on top of each other. Also, depending on your size of the sauce pan, you may need to do portions of the sauce and the onion and repeat the step so as to simmer all required patties. )
Serve. (If there is any simmered sauce left, pour it out on top of the patties. It is tastier!)