vegetarian diet

I am a pure vegetarian hence I would like to know the following: beef substitute in the GM Diet.
1. On the 1st day of the fruit diet can we eat any fruit except banana (orange,sweet lime, apple, melon, papaya, pineapple, pear, guava,mango & cherries)
2. when you say vegetables only besides salads can we eat boiled vegetables with salt, pepper, lime & olive oil, crushed garlic?
3. Being a pure vegetarian what is the substitute for beef ? can we eat cottage cheese?
4. Instead of ham burgers can we eat roti with vegetables?