The 21-year old striker will look to impress the management team over the coming days and could well feature in the two friendlies the Railwaymen have this coming weekend against Leek Town and Chester FC.
Lancaster had only made one appearance for the Premiership side when he came on in the 78 minute against Wigan back in Jaunary 2012.
The Camden born stiker joined Spurs as an 11-year-old and came through the ranks at the White Hart Lane club but injuries have dogged his career and will be looking for a fresh start away from London.