Crack 4 eggs into a bowl and add the scallions and cilantro.
Season them with fish sauce, pepper, and brown sugar.
Beat the eggs using a fork or spoon.
Add the mushrooms and glass noodles to the egg mixture. Mix well.
Heat olive oil in a pan.
Once the oil is heated, add the shallots and fry them until fragrant.
Pour in the eggs.
Using a kitchen turner or spoon to spread the filling evenly on the surface.
Gently lift and tilt the pan in a circular motion so that the eggs fill all the empty space.
Fry the eggs for 3 to 5 minutes over medium-low heat until they firm up.
Occasionally lift and tilt the pan as instructed above to keep the omelet from burning.
Slightly tilt the pan and slide the kitchen turner under the eggs.
Lift the pan upward and quickly flip the omelet over.
Cook your omelet for 1 to 2 minutes then remove it from the heat.
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