The one with the most possibility is two starch faces, as in (2), but the starch faces share an edge.
The one with the most possibility is two starch faces, as in (2), but the starch faces share an edge.
Also, the site indicates that a whole double-crust pie is a calzone, while a slice of double-crust pie is a taco. Having food categories change as they are served and consumed seems fundamentally unstable and can lead only to chaos. The single slice could easily pass through three or four stages during consumption alone! I think a food's category must be fixed at the end of preparation, for the sake of all sanity.
(Is an uncut bagel a Toast or an "air" Sushi?)
If I were arguing for this rule, though, I'd say that the unlisted combinations should collapse to the listed ones based on curvature. {side,bottom} collapses to either Toast or Taco, and {side,back,bottom} collapses to any of Toast, Quiche, or Taco.