By skipping a meal you are training your metabolism to slow down. Your body goes into starvation mode and begins to slow down to try and store fat. It is are bodies way of keeping us alive.
Instead of skipping a meal to lose weight, plan your meals ahead of time and pack them. Plan on having 5-6 small meals throughout the day. All meals should consist of lean protein to keep you full and satisfied and lots of non-starchy veggies. Add some fruit, starches and good fat as well. If you are trying to lose weight, go easier on the starches, fruit and fats- but do add some to keep your meals balanced.
Never skip meals!!