Heat vegetable oil in a large pan on medium-high heat and fry onions and diced spam until spam is slightly browned on the edges.
Fry mixed veggies until softened, about 1-2 minutes.
Toss in cold day-old rice and break it up. Season rice with soy sauce, ketchup and sesame oil. Toss until every rice granule is colored brown.
Divide fried rice into two serving bowls and firmly pack it into the bowls.
Plate two larger shallow bowls on top of each rice bowl. Let it set for 1 minute. Then flip it over and remove the first bowl.
In a small bowl, beat 2 eggs (per serving).
In a small frying pan (about 8 inches wide) set over low-medium heat, add oil. Pour your egg mixture into the pan and let it bubble to create a solid base. Quickly insert wooden chopsticks positioned at a 45-degree angle from each other along the edges of the pan. Then slowly bring chopsticks toward the center.
Hold the wooden chopstick in the center, only rotating the pan so your egg becomes a tornado shape.
Once egg tornado is cooked, with the help of the chopsticks slide it on top of the rice. Repeat this process again with the remaining egg for the second omelette.
In a small saucepan, add your sauce ingredients and whisk them together. Then bring it to a boil over medium-high heat, while stirring.
Once sauce has thickened, remove off heat and pour half of it around or on top the omelette fried rice. Enjoy!