Toffees boss David Moyes had agreed an undisclosed fee for the France striker, who has been offered a two-year contract with the option of a one-year extension.
The 30-year-old former Newcastle and Fulham forward will become Everton's third signing in a week following the captures of Lars Jacobsen and Segundo Castillo providing he is passed fit by the club's medical staff.
Saha, whose spell at Old Trafford was beset by injuries, has 18 international caps and scored 42 goals during his United career.
Luis came on loan during Ruud Gullit's term in office 1998/9 and looked very exciting in the few games he played. He scored a quite spectacular goal against Blackburn Rovers in the FA Cup to take Newcastle into the cup quarter finals. Money was not made available and he went to Fulham after making 12 appearances for the Toon.
The 30-year-old former Newcastle and Fulham forward will become Everton's third signing in a week following the captures of Lars Jacobsen and Segundo Castillo providing he is passed fit by the club's medical staff.
Saha, whose spell at Old Trafford was beset by injuries, has 18 international caps and scored 42 goals during his United career.
Luis came on loan during Ruud Gullit's term in office 1998/9 and looked very exciting in the few games he played. He scored a quite spectacular goal against Blackburn Rovers in the FA Cup to take Newcastle into the cup quarter finals. Money was not made available and he went to Fulham after making 12 appearances for the Toon.