in all honesty i would drop the things that are empty calories and try to boost some other stuff she has. i wouldnt worry about the volume but i would make sure she is getting a taste for things with nutritional benefit. if there are only heathy things on offer when she is hungry and feels like it she will eat them...

so in my opinion i would drop the spag on toast, hot chips, chocolate and include more things like eggs, cheese, vegetable sticks etc (assuming no allergies). if breakfast is the time she eats the most try some good stuff out then - homemade mini muffins, eggs, frittata etc.