Here's a few joints to stop and rest between LR and FS.
Here are a few places with good road food in Conway, AR near I 40.
Mike's Place @ 808 Front Street, Conway, AR 501 - 269 - 6453.
Shorty Small's @ 1475 Hogan Lane, Conway, AR 501 - 764 - 0604. http://www.shortysmalls.com/
Smitty's BBQ @ 740 South Harkrider St., Conway, AR. 501 - 327 - 8304. http://www.smittysbarbque.com/
Stoby's Restaurant @ 805 Donaghey Avenue, Conway, AR 501 - 327 - 5447. http://www.stobys.com/
E of Atkins is a good place for lunch or dinner at Morrilton Drive Inn in Morrilton, AR. Beverly's Diner in Atkins, AR is a nice place to stop for good road food. When you get to Russellville, AR you could stop at CJ's, Colton's, Old Post or Pudgy's for good road food. Headed East on I 40 you could stop in Ozark, AR for good BBQ @ Rivertowne.
Morrilton Drive In Restaurant @ 1601 Oak St., Morrilton, AR 501 - 354 - 8343.
Beverly's Family Diner @ 502 North Church St., Atkins, AR 479 - 641 - 0046.
C J's Butcher Boy Burgers @ 2803 North Arkansas Ave., Russellville, AR 479 - 968 - 2300.
Colton's Steakhouse & Grill @ 2320 North Arkansas Ave., Russellville, AR 479 - 880 - 2333. http://www.coltonssteakhouse.com/
Old Post BBQ @ 407 S. AR Ave., Russellville, AR. 479 - 968 - 2421.
Pudgy Pig BBQ @ 2405 E. Parkway Dr., Russellville, AR. 479 - 967 - 6062.
Rivertowne BBQ @ 205 S. 3rd St., Ozark, AR. 479 - 667 - 1808. http://www.rivertownebbq.com/
Get off I 40 at Exit 325 at Ft. Smith, AR and go E on Robert Pine Blvd. which turns into Garrison Ave. when you cross the river. Go to Rolando's Restaurante for outstanding Mexican cuisine for lunch or dinner. If you prefer BBQ go to Neumeier's Rib Room just down the street.
Rolando's Restaurante @ 223 Garrison Ave., Fort Smith, AR 479 - 573 - 0404. http://www.rolandosrestaurante.com/
Neumeier's Rib Room @ 817 Garrison Ave., Fort Smith, AR 479 - 494 - 7427.