Beat the eggs with chopped onion and chopped bell pepper, season with salt and mushroom powder until well combined

Start your pan with oil on medium heat.when it's hot, pour a thin layer of egg mixture and even out by tilting the pan.

Once the edge of the egg is cooked and the top of the egg is about 80 to 85% cooked, add a layer of cheese on top of the egg and start rolling the egg with a spatula and/or chopsticks.

Push aside the rolled egg (to the left) and brush some cooking oil in the empty space (right side of the pan). Pour out another thin layer of egg mixture on the empty space and when the top of the egg is about 80 to 85 % cooked, add a layer of cheese on top of the egg and start rolling the egg with a spatula and/or chopsticks. Repeat this step until the egg mixture is used up.