Sirius could see Cas was getting annoyed with him, but he’d faced this battle of wills over fruits and vegetables with Jenny far more than Cas had and he knew what worked with her. One of her friends was a very fussy eater and was allowed to dictate what she would and wouldn’t eat, and Jenny was trying to copy her, something Sirius was not about to let happen, he knew the importance of a well-balanced diet for kids.