Halve the smaller Brussels sprouts lengthwise and quarter the bigger ones. Toss with the oil, salt, and pepper to coat evenly. Divide the sprouts between 2 baking sheets, spreading them in an even layer.
Roast until crispy and dark brown, tossing once halfway through, 15-20 minutes.
Transfer both sheet pans of sprouts to a serving bowl and lightly toss with the hot honey. Top with the feta and pomegranate seeds. Serve immediately.