Stewart, 25, began his career at Rangers before being released by the Ibrox club at the age of just 13, and after spells with Hearts, Syngenta Amateurs and Cowdenbeath, Stewart got his big move to Dundee in 2014.
With 15 goals in his debut season for Dundee last term, Stewart became one of the most dangerous strikers in the Scottish Premiership, but this season has been a little more difficult for him.
Five goals in 18 appearances is something of a drop off for Stewart this season - but that isn't preventing interest in his signature ahead of the January transfer window.
The Scottish Sun report that Rangers are pursuing a January deal to bring Stewart back to the club, with manager Mark Warburton allegedly a big admirer of the striker.
Rangers have seen Martyn Waghorn thrive this season, but fans are keen to see another goalscorer brought in during the January transfer window, even with Kenny Miller and Nicky Clark also in the ranks.
Stewart, who has proven himself in the top flight of Scottish football, could be a major coup for Rangers, and with just 18 months left on his contract at Dens Park, the Gers may look to test Dundee's resolve next month as they pursue the Scottish Championship title.