I am surprised that some people find vegetarian meals a challenge as meat is only recommended to be eaten three times a week. What I find strange in this country area which I now live in is that many people put meat in everything they make. Such as they make a potato salad but then add ham. Some people around here have BBQs and will only serve meat, no salads, just lots of meat. Salads can be really delicious, especially those with wild rice, pasta salads, salads with avocado and cooked mushrooms etc, and salads can be very boring with just lettuce, tomato and cucumbers.
Deeda didn't your mother have some vegetables in the house. It is easy to feed a vegetarian the same meals if you are cooking meat with three vegetables type of meal, just give them the vegetables. I love roast dinners, I just don't eat the meat nor cook the potatoes or gravy in meat juices.