There are so many different ways to address mindfulness around eating. I'm glad you found one that works well for you! I'm a big fan of meal prep and portion control. Casual servings often end up being several times larger than necessary. I agree with you that practicing deliberate portioning is really important.

Another big issue is condiments. It's really easy to add a few tbsp of dressing to an otherwise healthy meal, which can add a few hundred "hidden" calories.