Re: pakoras!
Try boiled chicken and fish nuggets as well in pakora batter. Not my personal favorite but many people like them. Fish is better though.
Potatoes
Spinach
Onion rings
Or diced potatoes, spinach leaves and green onions and green chillies all mixed
Leeks (amazing flavor in pakoras)
Banana peppers or Mexican peppers (make a slit before dipping in batter)
Bread (firm bird cut in triangles)
Paneer (Get the block from Indian store and make squares)