What kinds of things did you have for breakfast growing up?
We were lucky because on weekends Mom used to make all sorts of things for my brother and I.
One dish in particular was her peanut butter french toast.
Make a peanut butter and jelly sandwich. (Jelly preferably guava.)
Dip into milk and egg mixture as you normally would french toast and cook with butter.
The version we had recently was different from "small kid times" (childhood) because my mom doesn't buy Love's white bread anymore, only whole wheat bread.
Another nostalgic breakfast is portuguese sausage, eggs and rice.
The spiciness and texture of portuguese sausage is something that cannot be found in Japan, though some chorizo can come quite close.
The egg has to be sunny side up or over easy...anything that will ooze over the plate, picking up some of the "juices" from the sausage, and soaking into the rice.
(Don't forget some ketchup on the eggs.)
Nowadays though, mom "fries" the sausage in the oven without having to stand by the stove (gets out a lot of oil too).
Looking back on the foods we eat nowadays, they have changed considerably from when we were growing up, but the tastes and memories have not.