The Finnish forward has left the Cottagers and joined the Norwegian champions on a permanent basis, after failing to break into the first-team picture in west London
Along with Alexander Kacaniklic, the 21-year-old joined Fulham from Liverpool in 2010 as part of a deal that saw Paul Konchesky leave Craven Cottage for Anfield.
During his time at the west London club, Dalla Valle made only two substitute appearances, with his debut coming in a Europa League tie against Faroese side NSI Runavik in June 2011.
Dalla Valle also spent time on loan at Bournemouth, Dundee United, Exeter City, and Crewe, while under contract with the Cottagers.
The youngster was part of Inter's youth team in 2005, before becoming homesick and returning to his home country to rejoin his first club JIPPO.
It had been reported that Dalla Valle was set to join Molde on loan, but after a successful trial earlier this month that impressed the defending Norwegian champions, the Finn was bought buy the club with six months of his Fulham contract remaining.