Pregnancy Diet/Food

I am gaining weight and more that I should be I'm just hungry all the time? The doctor seemed unhappy with my BMI change from before pregnancy. - what are you eating? What foods seem to fill you up more? I work 6 days a week 9 hours a day and we don't have a freezer at work so I'm struggling on what to eat all day and what I can make because deli sandwiches are a no go while pregnant. (My hours will go down to 40 again in December). I was talking to my husband about how it looks like I'm showing already but I'm only 8 weeks. He said that it's mostly fat- which is what the doctor said too:( I don't want to gain unhealthy weight. HELP ME PLEASE.