Chelsea beat champions Liverpool 1-0 on Thursday to climb to fourth in the table, a prospect that looked bleak when Lampard was dismissed with the team in ninth place.
"It's proven that Chelsea is an organisation and a club that has everything that you need to be successful as a coach and as a football team, so now it's my job to bring out the very best of myself, together with the team.
"I think N'Golo fits into any manager's plans on the planet," Tuchel told reporters. "I was desperate to have him in my teams (in the past).
"To see the guy live, to see how he works, how humble he is, the quality he gives to the team. I am so humbled to be his coach. He will start tomorrow.
Chelsea Football Club have sacked manager Frank Lampard after 18 months in charge.
The former Chelsea midfielder, Lampard leaves the club with the ninth place in the Premier League, following a poor run in form - securing only one win in their last five league matches.
Former PSG manager, Thomas Tuchel, is reportedly slated as Lampard's replacement.
"I expect he'll be doubtful for Arsenal. He turned his ankle and tried to carry on but it was too painful," Lampard said. "We'll have a scan to try and see how bad the injury is. We'll update after."
Germany international Werner will join Chelsea next season after the 24-year-old opted for the London club rather than Liverpool who had appeared favourites to sign him.
I have followed him for a long time myself, just as a talented player, even befor