Still can't burn belly fat! Any suggestions? Thanks!?

i swim 4 times a week for about an hour. I usually fit in about 1500-2000 meters when i swim. I accomplish my swim goal by doing consecutive 100 meters, taking about 15-30 seconds rest between each 100. on the days i don't swim, i go to my local gym and do a lot of upper-body exercises (benching, flys, triceps/biceps etc). i also try to be extremely conscientious about what i eat. I go to university now, so i usually eat a spinach wrap with like...grilled chicken, provolone, and ice burg lettuce with caesar dressing. i realize that caesar dressing isn't the best, but i don't get it loaded. On the side, i have apples and peanut butter. i eat this exact same meal twice a day. i don't usually snack. That is literally my entire diet, not because I'm trying to diet, just because i like to eat healthy, and that is my best option. now, I'm trying to eliminate some excess belly fat, and i feel like i have a good mix of cardio, weight training, and diet, yet i don't see very good results. is there any way i can tweak my schedule to improve belly fat burning? should i change something about the way i eat or go about exercising?