Have fun and experiment with this one — use your favorite white fish instead of the halibut and use whatever citrus you have on hand — the only limit is your imagination.
Heat cast iron over medium heat. Add 3-5 lemon and/or orange slices, bay leaf, and oil.
Heat for 5 minutes, turning lemon/orange slices half way through.
Add fish on top of lemon/oranges and bay leaf. Cover with a lid and cook for 3 minutes.
Serve with lemon slices on top of fish (and/or your favorite WLC-compliant sauce) and enjoy.