Answer:
Before crust hardens.
What is this Mexican dish consisting of a fried folded tortilla, filled with various mixtures, such as seasoned meat, beans, lettuce, and tomato?
As soft as silk, as white as milk, as bitter as gall, a thick green wall, and a green coat covers me all.
It stands on one leg with its heart in its head. What is it?
Many people confuse me with a vegetable, but I'm actually a fruit. I'm red when I'm ripe, and I'm sliced and served on burgers.
I can only be played on a windy day