What on earth is this Mummy?!

Today I have been a very happy boy, sat on my playmat with my toys.
Mummy had cucumber sticks and tzatziki for her lunch, and even though I had already had my lunch I eyed Mummy's until she shared!
She gave me a cucumber stick... I wasn't sure about it! But after I gave it a second chance I decided it's quite good to chew on for my back tooth. Then I threw it on the floor and started eyeing up Mummy's tzatziki and pitta!!
(She wouldn't share those though!)