Steam the sweet potato and mash it while hot using a spoon or fork.

Chop the crab sticks and pickles finely and mix them into the mashed sweet potato.

Beat 3 eggs and mix with milk. Strain the egg mixture for a smoother texture.

Blanch the broccoli in hot water, chop finely, and add it to the egg mixture.

Place one slice of cheddar cheese on a slice of bread.

Spread the prepared sweet potato filling on top of the cheese.

Add another slice of cheddar cheese on top of the filling.

Cover with another slice of bread to form a sandwich.

Dip the prepared sandwich into the egg mixture, ensuring it is fully coated.

Heat oil in a pan and fry the sandwich until golden brown on both sides.