In the third episode of season 2 of The Orville, Alara gets a gift for Capt Mercer as a goodbye present. The gift isn't revealed until the end of the episode. Capt Mercer opens the box and pulls out a jar of pickles and smiles. What is the significance of pickles? I must have missed or am not remembering some kind of inside joke.
Essentially, Alara is the strongest member of the Orville's crew but, initially, rather than concentrate on her duties as Security Chief the emphasis on her character was based on her strength to open stuck doors etc. and, on at least one occasion, open a jar of pickles.
In the very first episode, Mercer asks her.
"Alara. You want to open this jar of pickles for me?"
She makes this look easy and he then says
" I loosened it for you."
..to make it seem as though he didn't really need her help.