Eating evenly spaced out (every 2-3 hours) small meals a day actually speeds up your metabolism.
When you skip meals or wait to eat until lunch time, or even wait to eat your first meal until dinner time, your body goes into starvation mode. It stores the food you do eat, not knowing when it will get it's next meal.
Do not skip meals- Start with breakfast, snack, lunch, snack, dinner and snack. Space them out every 2-3 hours and plan ahead the night before or even the week before. Get a cooler lunchbox and take it with you wherever you go.