She could always try this Cashy! Britain's cheapest meal -recommended in today's austere financial climate...
"Victorian age recipe, toast sandwich, which consists of a slice of toast between two slices of bread and butter, and some pepper and salt for taste is UK's cheapest meal, according to the Royal Society of Chemistry (RSC). The meal costs 7.5 pence and was first promoted by Victorian food writer Mrs Beeton."
ONE A DAY KEEPS THE BANK-MANAGER AT BAY!!!!

Read more: UK's Cheapest Meal- Toast Sandwich | MedIndia
UK's Cheapest Meal- Toast Sandwich | MedIndia