Heat oil in large skillet and quickly cook
vegetables. About 2-3 minutes on a medium-high heat.
Take two large pieces of aluminum
foil. Place one piece of fish on each.
Top with 1/2 tablespoon butter, half the vegetables
and half the tarragon.
Repeat for the other piece.
Wrap tightly and place on grill.
over a medium heat for 12 - 18 minutes.
Open carefully because the steam can be very hot.