How fascinating that this felt like a real memory for you but wasn't! My weird lunch story wasn't about Chinese food but my Chinese immigrant mom's interpretation of what an "American sandwich" should be. She put scrambled eggs, American cheese, and peanut butter between two slices of bread. All the ingredients are arguably American, but it's an unorthodox combination.

Anyhow, your experience certainly does make me wonder whether I've misremembered anything, too.