Being on OW or ODSP is a poverty sentence that no amount of budgeting can change.

A single person receiving Ontario Works asssistance receive only $548 a month on ODSP ($206 for basic needs, maximum $342 for shelter).
A single parent with one child receives $1008 ($470 for basic needs, maximum $538 for shelter).
The Ontario average for a one-bedroom appartment is $787/month. For a two-bedroom apartment is $919/month.
Source: Income Security Advocacy Centre

In 2006 there were 279,304 Ontario children in families who relied on social assistance. Most of these children (78%) relied on the Ontario Works (OW) program. The vast majority (80%) were led by lone parents5. And 90% of these lone-parent families were led by women.
Source: Child Poverty in Ontario: Promises to Keep, 2006 Report Card on Child Poverty in Ontario, Campaign 2000

There are approximately 675,000 people who receive social assistance in Ontario.
Special Diet Allowance program provides supplemental funds to recipients of Ontario Works and the Ontario Disability Support Program who have dietary needs related to a medical problem. People who met the eligibility requirements as certified by a health professional (physician, nurse practitioner, nutritionist, or midwife) could access from $10 to $250 per month depending on their needs.
Source: Registered Nurses Association of Ontario