Struggling to eat

So I’m post of had vsg on may 20, 2018 and I can’t seem to eat as often as I’m told to. What my day usually looks like for breakfast I drink a premier protein shake and for lunch I usually eat a boiled egg or some tuna and crackers and than for dinner another premier protein shake and that’s it. Of course I stalled again and i figured it’s because I’m not getting enough calories in or i don’t know I’m just never hungry so it’s difficult to sit and eat. Do you guys have any recommendations for small meals or snacks to get the ball rolling again thanks in advance