On a recent weekday morning, 11 state prison inmates swarmed the San Antonio Food Bank’s kitchen, picking out some of the better groceries and ingredients in stock. Leonardo De La Rosa, 25, imprisoned for an aggravated robbery when he was 16 and possession of drugs when he was 19, had a tray full of whole tilapias. “Originally, I wanted to make asparagus-filled fish with peppercorn sauce, but they didn’t have green peppercorns, chives,” he said,…