If you like to eat large portions, have a lot of healthy food in the house that is easy to eat and doesn't require much prep. Like hard boiled eggs, plain yogurt (easy to make a dip for vegetables or add to a smoothie or mix with fruit), different fruits and vegetables (canned and frozen are ok if that's easier for you and you like them). Try to drink more water and tea to fill you up. I have an air popper for popcorn and that's great for filling you up without too many calories (unless you need a lot of butter on your popcorn).
Look at weight watcher's new freestyle plan. Basically you can eat all the fruit, vegetables, beans, eggs, fat-free milk and plain yogurt, and certain lean meats you want, and you track nutrients for the other stuff and you get points. You don't have to cook for yourself--in fact, it's honestly easier to either make a meal from the points-free stuff and a slice of bread or something, or to buy a frozen meal and just use the nutrition facts on it to figure out the points.