Just had some last night! It was inspiring :)

but we never see it in any other game except squeak squad

Not true. Beginning cutscene of Kirby’s Return to Dreamland, when King Dedede and Bandana Dee are chasing Kirby, who is holding a slice of strawberry shortcake above their head.
Not to mention the fact that it appears as a food item throughout the game and, I’m sure, in many other games this way