A little late

I've been busy trying to catch up on homework that I've neglected for several weeks so posting time has been minimized.

Seeing my total for the day I'm worried that I'm not eating enough. Over the past few days, I've noticed that I physically cannot eat as much as I was. My stomach gets full and I just don't want to eat any more. I know I have to, though, to at least make sure I'm getting the minimum calories I need for the day.

Mid morning snack:
1 Pria Bar - 110
1 cheese snack - 90
Total: 200

Lunch:
1 veggie sandwich on fancy bread - (guessing) 400

Pre-workout snack:
Balance bar - 210

Dinner:
4oz turkey burger - 170
1 potatoe roll - 130
3oz seasoned potatoes - 130
1c side salad - 30
Total: 460

Daily total: 1540