lindsaycourt102210.jpg X17online has learned that Lindsay Lohan just arrived at the Betty Ford Center in Rancho Mirage, California, but not before making one last food run at a McDonald's drive-thru!

The starlet was accompanied by a woman and two men in a mini-van, and they stopped at the fast food restaurant about two hours into the trip. Our sources on the road tell us Lindsay didn't get out of the car, which up until that point was moving at a steady speed of 80 MPH on the freeway.

After stopping by McDonald's, Lindsay was taken directly to rehab, where she will stay until January 3, 2011.