Preheat a grill to medium high on one side, and brush the cauliflower steaks with olive oil. Sprinkle with the buffalo seasoning on all sides. Grill on direct heat (over the flames), lid closed, on each side for about 6 to 9 minutes, or until tender-crisp when poked with a fork and lightly charred. If you find your cauliflower is charring faster than it is cooking through, transfer to the indirect heat, and cover with the lid to finish cooking through. Once tender-crisp, transfer to a baking sheet and brush hot sauce and honey glaze generously on both sides of the steak.