3-4 lbs. whole beef tenderloin
2 (4 oz.) frozen lobster tails
1 tbsp. melted butter
1 1/2 tsp. lemon juice
1/2 c. sliced green onion
1/2 c. butter
1/2 c. dry white wine
1/8 tsp. garlic salt

Cut tenderloin lengthwise to within 1/2" of bottom. Simmer frozen lobster tails in boiling salted water 5 minutes. Remove lobster from shells. Cut in half. Place lobster end to end inside beef. Drizzle combined melted butter and lemon juice on lobster. Close meat around and tie together with string. Roast at 425 degrees for 30 minutes on rack in roasting pan. Saute onion in butter in saucepan, add wine and garlic salt and heat. Slice roast. Spoon on wine sauce.