Vegetarian protein suggestions please

Hi all, my son is 9 months and 3 days old. He likes to eat by himself. When I try to feed him, he pushes my hand or the spoon away. When I serve him with little or long pieces of food which he can pick he plays with them but also eats them.

I am curious as to how you all are doing with mashed food (or the food which is not like a finger food) like lentils, chickpeas, beans, avocado, etc.. do you still let them eat by themselves and there will be a lot of mess afterwards or do you feed them? Please please share your experiences.. I am constantly worried about him not eating enough solid food. Would love to hear others stories and learn.

And I am also looking for protein ideas in the form of finger foods. I haven’t introduced him to any meat yet, but I am planning to do it once he is 1 year old. But in the mean time, I was wondering what vegetarian protein rich fingerfoods can I give him. Egg is not an option since he had a strong reaction of projectile vomiting to it twice before.

I am from South India, so it would be great if you could suggest related cuisine or anything else is also welcome. Thank you !