during the week i have 2 weetabix with skimmed milk (warmed up in the microwave for 1 1/2 mins) yummers with a chopped banana. or i have shredded wheat or porridge with a banana (also done in the microwave) i find that a warm breakfast fills me up for longer, and these all work out at around 300 cals.
if i get peckish mid morning, which, to be honest is mainly due to boredom, i have some strawberries, a pot of sugar free jelly or a slim-a-soup.
at the weekends i have a bowl of crunchy muesli that i buy ready made from a local health food shop - then i add goji berries, cocoa nibs, chopped dried dates and sultanas. i'll either have it with semi skimmed milk or mix in a muller light yog. it does take the cals up to around 400-450 but it's totally worth it - soooo tasty and keeps me full until around 2-3pm. yummers. i love weekend breakfast!