Steps:

Cut spinach into small pieces.

Beat eggs with proper amount of milk.

Stir-fry spinach in a pan with less oil until soft.

Pour in eggs and milk.

Turn the heat down and add the burrito until it is mixed with the egg mixture.

Put cheese slices

Turn over after the egg liquid is completely solidified.

Fold it up and turn off the heat until the cheese is completely melted.

Another glass of milk is a nutritious brunch.