Kilm steak is a meat dish.
In 2375, Ezri Dax almost ordered kilm steak in the Replimat on Deep Space 9, before remembering that Tobin Dax was a vegetarian. (DS9 episode: "Afterimage")
Kilm steak was also served in Quark's, where it was available with mashed potatoes and butter. (ST reference: Celebrations)