Greek Fish in a Packet

2 (5 to 6 ounce) fish fillets (use firm fish)
1 cup fennel bulb, thinly sliced
1 small tomato, sliced
8 thin slices red onion
2 tablespoons olive oil
Juice from 1 lemon or lime
1 tablespoon chopped fresh dill or 1 teaspoon dried dill
Dash of salt
Pepper to taste

Heat the oven to 450 degrees F. Cut two sheets of aluminum foil to 12 x 24 inches. Fold each sheet of foil over to make a double thick square. Brush a little oil on the center of each square. Layer half of the sliced fennel, tomatoes and onions on each square. Top each with a fish fillet.

In a cup, combine the olive oil, lemon or lime juice and dill and pour it over the fish. Sprinkle on salt and pepper. Fold the foil into an airtight packet. Bake for 20 minutes.