Hello
I'm vegetarian and have been since I was diagnosed at 12 - throwing up meat for weeks put me off eating it - but don't low carb. I'm type 1 and on a pump, however, so it's a bit easier for me to bolus for my carbs than if you're type 2.
I try to eat low GI carbs like wholemeal bread instead of white and put some protein in every meal.
I eat Weetabix in the morning as I find it doesn't affect my sugar levels as much as say Crunchy Nut Cornflakes and even though it's high GI, it works for me. I also have 200ml orange juice.
I tend to snack on fruit, I'll eat a banana, apple and clementine/peaches/handful of grapes a day and a naughty packet of crisps at work.
I'll have a cheese/fam (fake ham) sandwich and yoghurt or a yummy M&S pasta salad (I love those with the pine nuts and pesto!) for lunch then for dinner, it's usually some kind of Quorn thing with salad/chips/veg or a pasta like 4 cheese tortellini in arabiatta sauce... though sometimes I just can't be bothered eating so it's boiled egg and toast.
I probably don't eat as healthily or as much as I should as my job is pretty sedentary so if I eat any more, I put on weight(I'm 5ft9" size 12 BMI 21.6). I walk the dog for 30-45 mins a day so that's the only exercise I get during the week, more at weekends.
For a long time, I ended up replacing meat with carbs rather than with protein like you should which is a hard habit to get out of. I'd eat packets of crisps to fill myself up because I was always hungry. The lower GI carbs seem to help with this now though and eating the fruit instead of snacking on crisps is better for me.
The Vegetarian Society have a lot of information on their website if you want to look...
www.vegsoc.org there's a section on nutrition there if that's any help to you.
Anyways, I've persevered for the last 18 years as a vegetarian and diabetic - people seem to think I'm hard to feed but actually I'll eat what everyone else is eating, just minus the meat. I'd say speak with your dietitian about different options for keeping yourself full. They might give you some good advice on what suits you.