I am not a Vegetarin, However I do know many people who are , are not because of PETA issues, but rather health issues.
Red Meat can be unhealthy and Veggies are much more healthier. Too much red meat causes high Colesteral and can cause Colon issues
In general Hemish cooking isnt always the most healthy, Kugel is full of fat and oil, Chulent has tons of oil and there is a lack of Green Vegetables and even fruit eaten in a hemish diet