One of the subtler jokes is that Ora Zella is wearing her green Jammies with the hearts—and you can see that pattern in panels 4 & 7 before she pokes her head out at the end. In other words, she was there all along. Just hidden.
I just realized you had responded. You have to take the whole strip into account. Goldie is saying that she no longer wants to be a reporter; she wants to be a detective. So Ora Zella told her to do that: “You are an adult. You can do whatever you want.” Goldie asks if that philosophy ios why OZ was wearing a donut. The answer: Yes. She is doing what she wants to do. “Always wear the donut.”
But only after several prolonged talks with the bandits’ scantily clad female leader.