There is a vegetarian option but you have to specially request it - it isn't an advertised option.
We went in September last year and it wasn't advertised so we had to make a request and DF got a lovely spicy tomato based pot-pie style dish - he said it was delicious. In fact, he enjoyed it so much that we are going back on our next trip
Also he got the extra veggie options that are for the kids - mac 'n cheese and a different vegetable I think.
Oh and we didn't call ahead we just told them he was veggie when we arrived