Lobster Bisque II

INGREDIENTS

• 3 green onions, chopped
• 2 tablespoons vegetable oil
• 1/4 cup all-purpose flour
• 1 1/2 cups milk
• 1 cup cooked and cubed lobster meat
• 1 1/2 cups half-and-half cream
• 1/4 cup dry sherry
• 1 pinch ground white pepper
• salt to taste