Should you be traveling I-70 in Kansas by far and away one of the best steakhouses in the state is at the Bunker Hill Cafe located off of exit 193.
http://www.yelp.com/biz/bunker-hill-cafe-bunker-hill
Excellent food and surroundings.
Not a steak dinner but IMO the best eats on the Kansas section of I-70 is the Brookville Hotel in Abilene. The best fried chicken dinner anywhere - the only menu item.