Yes, Jesus was a vegetarian. He practiced spiritual vegetarianism and therefore did not eat meat, fish, or eggs.
Many passages of his teachings were deleted and modified, and additions were made at the behest of Emperor Justinian, who wanted this emerging new religion to be in line with the prevailing religion of the time. Jesus taught by example and did not eat meat, fish, or eggs. All his disciples and apostles followed him on this pure path. They were all sinless, for they lived according to the teachings of Krishna, the Supreme, Primordial, Infinite, and Absolute Personality of Godhead.
Through spiritual vegetarianism, an expression of the regulative principles that maintain human purity, God draws human beings' attention to non-violence, the protection of all land and water animals, all plants, from the blade of grass to the great tree that shelters numerous living beings, and to the brotherhood, harmony, and benevolence that must unite all people without exception, white, black, yellow, red, and mixed race, and lead them to achieve spiritual fulfillment and purity of being.
Spiritual vegetarianism leads human beings to love unconditionally and with equal love all human beings without exception, all land and water animals, and all plants, from the blade of grass to the great tree.
Such is the purpose of the incarnate being that each of us truly is, and the perfection of existence.
During his Magisterium, Jesus forbade the consumption of meat in these words:
[Words suppressed by demonic unbelievers in order to prevent human beings from knowing the truth, to keep them in darkness and ignorance, far from God, and to force them to live in sin].