Added thought...pizza doesn't have to be deadly to the diet....you can load it with veggies and LEAN meats (not sausage and pepperoni!). Tomato sauce is healthy for you...just go easy on the cheeses. Don't gorge and you can have a relatively healthy choice. Have a big salad with it to help fill you so you don't FILL on pizza. You shouldn't feel like you CAN'T eat things...you just learn to do it carefully, thoughtfully and in reasonable amts.
I Love pizza! And last Saturday I went nuts! I had just started tracking my Sodium intake daily to keep it under 2300mg and that day I wound up with over 6600mg! Calorie wise pizza will run anywhere from 200-600 a piece many of those you can double the sodium mg's. Since I have started monitoring the sodium I average 1600 mg a day and have lost 8 pounds in 8 days. Sodium makes water stick to you like glue.
BTW having Pizza for dinner tonight, I MUST behave myself! Here's my motto: The only way to succeed at anything, is to take 1 step at a time and be happy with it! If you fall pick yourself up, if you take a step back, if you stall, just take a step toward your goal, no matter how small!
I go with just tracking it if you have eaten it. Not the best place to get your nutrition from, but once in a while wont kill you. Enjoy without the guilt and move on.