I often have a savoury muffin and a piece of fruit or tub of yoghurt Emma...the muffins I make and put in the freezer so can pull one or more out and heat in the microwave...very quick and easy. There are 3 recipes already on the forum (with nutritional info)
Or you could try a couple of pancakes (keep a bottle of that low fat Pancake Mix in the fridge) with some fruit and yoghurt. If you don't want to make them on the morning you can actually make them in advance and keep them in the fridge for a couple of days.
Or baked beans are very healthy...have some of those little tins on hand...beans on toast (no butter) with a sprinkling of grated (low fat) cheese and some tomato slices is very filling and healthy
a lot of people find that having a protein shake for breakfast gets them through to lunch time and especially with kids its easy to prepare. my sister swears by 'up & go' as well. she is a busy working mum. im not really a breakfast person so i would just have a piece or 2 pieces of fruit for my breakfast.