Ezra lifts his chin defiantly, daring Garth'zel to call him a liar. "No, I didn't," he insists stubbornly - and he didn't. All he has in the box he's borrowing is the food he put in it originally. He doesn't steal from people who are nice to him.

He wouldn't steal at all if he didn't need to to survive. Unless maybe someone really deserved it, like the Empire.