Take a lunch break. Try an oil and vinegar–dressed salad topped with veggies and salmon, which contains carotenoids that improve skin elasticity so you don't wrinkle. 

Or have a soup (not cream-based), which can help slow the time it takes food to travel through your system—keeping you fuller longer and helping protect against waist and weight gain.
 
Even if you're rushed, practice slow and deliberate eating.