Using ingredient oyster liquid if mixture is too stiff

Pork-oyster Pie

• 24 oysters
• 18 pie shell
• 9 pie shells
• 450 gr beef (lean ground)
• 130 gr pork (lean ground)
• 120 gr onion
• 65 gr bell pepper
• 60 ml vegetable oil
• 50 gr celery
• 32 gr flour