Pizza
The pizza demonstrates remarkable structural flexibility whilst maintaining its essential identity. Deep dish in Chicago, thin and crispy in Rome, rectangular in Detroit, folded in New York - the format absorbs regional interpretations without losing coherence. Hawaiian pizza sparked international controversy, yet the format survived. Breakfast pizza, dessert pizza, even pizza-flavoured crisps - the conceptual elasticity appears limitless. The pizza has proven itself a blank canvas upon which humanity projects its most creative (and occasionally questionable) culinary impulses.
Tacos
The taco's adaptability operates through infinite filling permutations rather than structural modification. From traditional carnitas to Korean bulgogi, from breakfast eggs to ice cream, the taco shell welcomes all comers with democratic enthusiasm. The choice between hard and soft shell represents a fundamental philosophical schism within taco culture itself. Street tacos, gourmet tacos, fusion tacos - each variation honours the original whilst pushing boundaries. The taco's adaptability lies in its simplicity: fold, fill, consume.