Sauce:

2 Tbsp. vegetable oil
2 tsp. ginger
2 cloves garlic, minced (or 1/4 tsp. garlic powder)
4 Tbsp. soy sauce
1 Tbsp. sesame oil

1. Mix all ingredients

Assemble:

1 1/2 cups rice, steamed
4 cups bok choy, chopped
4 scallions, chopped
2 tilapia fillets (approx. 1 lb.)

1. Brush 2 sheets of aluminum foil with oil.
2. Spread half of the rice on each sheet and top with half the bok choy and a fillet.
3. Top with scallions and pour sauce over the top.
4. Fold up and seal foil packets.
5. Bake at 450F for 20-25 minutes.

Source: Moosewood Restaurant Cooks at Home