I had my MGB about 4 weeks ago. The diet was very simple and easy to follow:
Week 1: 2 days after surgery, no food or drink. Next 5 days clear liquids (tea & honey, meat juices)
Week 2: Watery soups and meat juices blended well
Week 3: Soups and stews blended well
Week 4: Soft well cooked food, which is chewed well
After the first month all food are allowed in small portion, chewed well and eaten slowly. Avoid bread, sweets, high fat and high carb foods to lose more weight.
Hope that helps
HK