Boil some water in a pot. Drop in the egg and let it boil on low heat for 10 minutes, then place in cold water to cool.
Remove the stem and seeds from the bell pepper and chop into 1 cm chunks. Mix in a pinch of salt and let sit for 10 minutes to absorb the flavor.
Peel the boiled egg and separate the yolk and white. Chop the white into small pieces with a fork. (It's easier than using a knife.)
Wrap the bell peppers from Step 2 in a paper towel to thoroughly drain.
Mix together the egg, bell pepper, and ＊ ingredients in a bowl. (The egg yolk will break up on its own as you mix.)
Cut the bread slices in half and then cut the inside to create a pouch. Stuff with the mixture from Step 5 and enjoy!