I want to be supportive to you so I say this with a hug.
You did not get over weight by not eating enough.
We have all done it, start a new diet and start eating "low fat" "non fat" and only "low cal" foods.
Then we can't eat all our "points" from weight watchers or all our calories from sparks.
Sit down and look at your food intake. And make some changes.
Your a vegetarian but do not like vegetables?
But you have options, eat veggie dogs, refried beans, corn tortillas, "egg beaters".
You need at least 1200 cals to be healthy, so please sit down and relook at what your eating.