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A plate consisting of all the four pictures below would be a great choice too, as long as you do not pile on too much of them (especially item 3 - the cold cuts and meat). In fact, with most of us working in the office, that item can be non-present as the other three is actually good enough. Remember, keep it all in one plate, that's all you need.
A bowl of cereal (weetbix & all bran) with nuts, seeds & raisins and low fat milk. Do not forget to take some fruits, this will complete the entire breakfast.
Muesli or whole grain cereal with low fat milk and fruit
Picture taken from here
Tea reduces stress level and enhances your metabolism rate. I would normally reserve my cup of well-deserved coffee for the afternoon.