Weight gain.. Help?!

This is my first pregnancy. I am almost at 24 weeks with a baby girl and I have already gained over 30 lbs.. I left my appointment in tears Thursday because my doctor was yelling at me for it. I've been under an incredible amount of stress and haven't intentionally been eating more. I just don't feel full. 
Does anyone know any recipes or meals to eat that could possibly help curb this ridiculous appetite? 
Any simple exercises would be greatly appreciated as well.. Thank you.