Fry the Bacon, when cooked, remove and set aside.
Crack the eggs and then place in a medium bowl.
Add the mayonnaise and milk and whisk, then add your seasoning salt and pepper and whisk well. Set aside.
Heat the cooking oil in a pan.
Saute the onion and tomatoes for 2 minutes.
Pour-in the beaten egg mixture. Spread the mixture by tilting the fry pan sideways. Cook for 1 minute.
On one side place the grated cheese and the fried bacon slices. Continue to cook in medium heat for 2 minutes.
Flip the omelet with the aid of a wide spatula and then cook the other side for 2 minutes.
Turn off the heat and then transfer the omelet to a serving plate, then garnish with scallions.
Serve it with Pandesal of steamed rice.