Here are some of my favourites:
Tomato Sandwhiches (2 work out to be about $0.40 depending on where you get your tomatoes)
Big Ham Sandwhich - I get ham for 1.10/100g at the market and buy a french loaf for $1.99. Put them together and put them in the oven to crisp, and I have a HUGE sandwhich for lunch/dinner for less than $4.00
Pasta - Full meal of pasta is generally under $2.00
Homemade Pizza - Buy cheese on sale and use bacon (on sale) and you can get a whole homemade pizza for close to $2.50
Can't think of anymore right now, but I will if I remember... my household (2 of us) generally eat on about $130 a month, give or take maybe $20. We eat cheap, but generally not super healthy :-(

