Chili N'awlins

• 4 bay leaves
• 1 head lettuce
• 900 gr round beef (ground)
• 600 gr onions (chopped)
• 300 gr tomatoes (crushed)
• 260 gr pork (ground)
• 160 gr sharp cheddar cheese
• 20 gr chili powder
• 18 gr tomato paste
• 5 ml wine vinegar (red)