Castiel knew fully well that Cookie Crisp wasn't the healthiest of food options. Far from it, actually. But he found that he actually liked the cereal. "Cookie Crisp reminds me of Jack," he said softly. Of all the things back home, Jack was who he missed the most. Of the ones who wasn't here, anyway. Jack and Claire.
He smiled at Blake, and kissed the man softly. "I think we should definitely get some cereal while we're out," he said, smiling slightly. "And some treats for Lennox."
Because Lennox was important, too. He was rather fond of the dog, even though he was technically Blake's dog.