Thought I'd share this because I found it really useful.
This website gives you a four week diet plan that won't break the bank. (Scroll to the bottom of the page and click on the weekly plans under the section heading 'Diet on a Budget Plan').
I substituted fresh veg for some of the frozen suggestions but otherwise the nutrition has really been worked out well and it didn't feel like I had to become a 5 star chef or spend lots of money to eat healthily.http://www.weightlossresources.co.uk/diet/plans/budget-diet.htm
Would be grateful if anyone else found any useful budget recipes to share them too.