I'm not going to recommend anything along the lines of eat more, up, down, etc your calories b/c I dont know your situation & I'm not a nutritionist who can tell you these things. On the other hand, I have the same problem, and have begun incorporating calorie dense foods into my diet otherwise, after I workout I've only eaten about 400 calories p/day. You can try and add avacados to your salads (if you do salad), peanut butter, more fruit, cook food in olive oil (~120 cal p/tbsp), easy things like this. My biggest concern with all of these are that they seem to be high in fat or sugar, but I am still loosing Good luck... I definitely feel you on this. I workout about two hours a day, and struggle to net about 700-850 calories a day. I eat about 1900 a day? I dont know.. I just know its difficult, So I'm starting to plan earlier in the day so at night I don't have to stay up late eating peanut butter

-also, you can try tracking your calories to see if you're really eating as little cals or as many as you think you're eating, I use thedailyplate.com some other likes fitday.com and I know there is another site but I'm not familiar with the name.