Treating myself while on healthy diet?

Today i plan on going to the mall and getting...

12 inch' subway club on wheat bread(no mayo,or cheese) with lettuce;tomatoes,and mustard ..For Lunch.. i'll eat one half of it and a small strawberry-banana smoothie (worth 290 calories)

then the other half for dinner





p.s...for breakfast, i had a cup of kashi go lean crunch original cereal w/cup of skim milk.Treating myself while on healthy diet?
Have something that us no more than 150 calories. Have a little but of dark chocolate if u are craving chocolate. Have small portions and don't overload on any snack! U r on a healthy diet, so it's vital that you keep to small portions.