Heitinga sat out last weekend's victory over Blackburn after suffering the injury in the previous match against Aston Villa.
Mikel Arteta looks certain to retain his place for Sunday's Premier League visit of the Cottagers after recovering from a groin strain - but Marouane Fellaini and Dan Gosling remain absent.
Toffees (from): Howard, Neville, Jagielka, Distin, Yobo, Baines, Pienaar, Osman, Cahill, Arteta, Bilyaletdinov, Saha, Rodwell, Senderos, Yakubu, Hibbert, Turner, Duffy, Anichebe, Wallace.
