Pizza is not the best option when trying to stay on track but....who wants to give up pizza?!?
Here are some tips to control the damage.
Choose THIN crust, a cauliflower crust is an even better option
Go easy on the cheese but you can add extra sauce if you would like
Limit fatty meats like sausage, ham, bacon, and pepperoni. Choose one or better yet, add chicken or shrimp!
Add a couple of vegetables! Onion, peppers, mushrooms, spinach, artichoke, tomatoes, garlic, etc.
Start your meal with preferably a side salad but an apple, or pear is also a good choice. This way you will get some nutrition and won't be ravenous and over indulge.
Keep your portions in mind. You may try cutting the pieces in half to help you eat slowly and really pay attention to how much you are eating.