Here's how it all went.
B: Jack's granola (6p); a good dollop of natural yogurt (apf) Total 6p
L: macaroni cheese with broccoli and peas (58p) Total 58p
T: tomato and lentil soup (14p); toast (3p) Total 17p
Snack: peanuts (4p); pear instead of apple and costed yesterday Total 4p
So I had £16.13
I spent 85p on food and 45p minus 10p on milk