But if Jesus is against eating meat, why would He multiply the fishes and the loaves for the crowds to eat, and on more than one occasion? (Matthew 14 and 15.) He literally fed thousands of people with fish -- how could He if He were against it? God does not lead people into sin.
Likewise, how would this account be explained?
When the disciples still did not believe that Jesus was risen, "He said to them, 'Have you any food here?' So they gave Him a piece of broiled fish and honeycomb, and He ate it in their presence."
And again, when Jesus arose and appeared to them, He not only asked, "Children, have you any food?", but when they answered no, He told them to cast the net on the right side, resulting in a catch so plentiful that they couldn't even draw it all in.
"Then, as soon as they came to land, they saw a fire of coals there, and fish laid on it, and bread. Jesus said to them, 'Bring some of the fish you caught,'" inviting them to "Come and eat breakfast." (Matthew 21.)
Again, the Lord will not lead anyone into sin. Now I know some will argue that this is specifically about fish and not other forms of meat -- but the point is, Jesus seems to have no problem with catching, killing, and cooking at least certain living creatures for food.