1 pkg. Pepperidge Farm frozen puff & pastry shells, baked, tops off
1 pkg. Knorr white sauce mix
1/2 - 1 lb. lobster meat, tails, cleaned & cut into chunks
1/2 c. sliced mushrooms
1/2 c. butter
1 3/4 c. half and half, warmed
1 tsp. dry mustard
1/4 c. dry sherry
Dash of Tabasco sauce

Prepare white sauce mix using half and half, sherry, dry mustard and Tabasco according to package directions. Saute mushrooms and lobster meat in butter until just warmed through.

Combine mushroom/lobster mix with white sauce and let sit covered 1 hour at least. Meanwhile, prepare pastry shells according to package directions. Remove tops and fill with lobster mix. Serve with pastry top over lobster. Lobster "Thermidor" may also be served over thick sliced toasted and buttered Italian bread slices.

Serves 4-6.