California’s newest In-N-Out is officially serving up Double-Doubles, and fresh photos show burger fans are wasting no time christening the drive-thru. The newly minted outpost anchors The Canopy, a 12-acre, 90,000-square-foot outdoor shopping and dining hub taking shape at Irvine’s massive $1 billion Great Park. Clocking in at roughly 1,300 acres, the sprawling mega project dwarfs Manhattan’s 843-acre Central Park. New photos captured on opening day on Friday reveal the unmistakable energy of an In-N-Out debut. The iconic red and white burger spot was buzzing with activity, with staffers in crisp white uniforms, red aprons and paper hats slinging wrapped…