Gemini thought hihi.
They do not like to eat vegetables.
They however. Love meat and really like bread.
They like fruit as snacks okay. But their favourite snacks are flowers.
Yup. Straight up flowers. They are careful and know what is poisonous and what isnt but that is what they eat.
They also love to eat stuff raw.
Papyrus did find out that having fresh bread with like some flower pasta/spread is also a hit with his picky sibling.
It is also why the Flowey in this universe doesnt bother Gemini.
He was going to scare them (becuase Papyrus was very protective of his sibling) and was firdt shocked to see them eat a flower.
More shocking was to see them eat a mouse RAW. like. They used their own claws (hand and feet) to skin it to get to the meat.
Gemini just vibing and looking at flowers
Flowey: hihi i am gonna scare them.
Gemini picks ans flower and bites the top clear off
Flowey: ... oh.
Gemini just looks up. Climbs a tree and just. Drops down and catches a mouse which they eat.
Flowey: ....