Donald Trump's fast food plan worked ... because Clemson's star QB Trevor Lawrence tells TMZ Sports he LOVED the President's McDonald's spread at the White House and can't wait to do it again!
Lawrence and the rest of the Clemson Tigers arrived to 1600 Penn to celebrate their National Championship victory over Alabama ... where President Trump personally selected the food menu.
"I think we're going to serve McDonald's, Wendy's and Burger King with some pizza," Trump said to the media earlier that day ... explaining, "I would think that's their favorite food.