Gareth Southgate believes Mido can thrive on the sort of service Boro are capable of providing - particularly from England winger Stewart Downing.
The Boro boss told his club's website: "He is someone I played against as a player and he always impressed me.
"When you've got one of the best crossers of the balls in the league in Stewart Downing, you want someone like Mido who can head the ball.
"You want a centre-forward to hold the ball up, to be a physical presence and to score goals. Mido brings all of those attributes."
He scored 11 goals in 27 league starts during the 18-month loan spell, prompting Spurs to make the move permanent.
However, Dimitar Berbatov, Robbie Keane, Darren Bent and Jermaine Defoe were all above him in the queue for striking slots at White Hart Lane.
Southgate added: "Mido is a player I believe possibly has a point to prove.
"He is a player of great ability, a strong player and a big character - someone who can lead from the front.
"He's got good technical ability and he's a goalscorer. He has got a desire to come here and score goals, and that is an important thing for any team.
"In terms of the squad, we needed another striker and he will give us different options. He's very good in the air, and that will be an important contribution.
"We have got some very good players here, players of great character and big reputation.
"That's one of the reasons we were able to attract Mido to come here. We need strength in depth and I feel we need four strikers to provide competition for places."