Pizza is western adapted fare.... you wouldn't salivate over an old pizza (poverty pie). The original sandwich wasn't enticing... wraps or burritos or sushi rolls were all the basic same.
While standard commercial brands use real varieties like Royal Ann, Rainier, or Gold cherries (which are bleached, dyed red, and soaked in sugar syrup), chayote balls (known in Brazil as chuchu) are frequently used as a cheap, DIY imitation