Breakfast is very difficult. For me, that's when my body is most craving carbs and I could easily put away a Full English breakfast most days.
I have several things I try to do, for example:
Plan ahead. If I'm making say scallops or prawns the night before, I'll put some aside for breakfast the next morning. Were I in Maine I would probably eat lobster as much as possible.
One day a week I might eat two grapefruit.
Cheese, deli meats and maybe grapes.
Brown bread. We buy a Lithuanian salted rye at the Borough Market and it is so good it's practically the only bread we are eating right now.
Tomato soup.