Complex sentence: These reports are based on Morgan's penchant for the "Moons Over Hammy" sandwich, in which friends have told secretly disclosed that, given a choice, he prefers the Hammy over the Moons.
Split into simpler sentences: These reports are based on Morgan's penchant for the "Moons Over Hammy" sandwich. Sources close to MD have secretly disclosed that, given a choice, he prefers the Hammy over the Moons.