On Jamie and Jimmy's Friday Night Feast the other week Jamie showed a great cheap and easy way to make a fab gravy, which can also double up as a rather delicious Cook-In-Sauce
http://www.channel4.com/programmes/jamie-and-jimmys-friday-night-feast/on-demand/63962-005
Jamie's recipe is part of his meatloaf dish
https://www.jamieoliver.com/recipes/beef-recipes/meatloaf/
The ingredients are:

• 500 ml organic chicken stock
• 2 tablespoons quality blackcurrant jam
• 1 tablespoon sun-dried tomato purée

So last Sunday, as I was cooking roast chicken, I used the above ingredients using a chicken stock cube and some homemade very berry jam I had in the fridge. I have to say this gravy is fantastic.
Then on Monday I made some more, only this time I used some left over red wine I had frozen into ice cubes instead of the jam. I then added a mixture of dried and fresh herbs I had around the kitchen, although I could have added some frozen herbs instead.  I needed a little more tomato puree to thicken up the sauce then poured it over the left over chicken and vegetables from Monday.
So thank you Jamie, you have helped turn my leftover Sunday lunch into a great tasting casserole which will keep my lot going until Wednesday!!!

I have recently discovered Quinoa. It is similar to couscous and very easy to make.  Just boil it in a saucepan as directed on the packet.  Quinoa is cheap and versatile.  I make it and add it to salads, curries and stews to make them go that bit further.

If you fancy some complex carbs to keep the hunger at bay also add it to whole grain rice or use it as a rice substitute if you are being really healthy. 
You can also add it to homemade burgers or use it as an alternative to oats when making porridge. https://www.thehealthychef.com/2012/02/quinoa-power-porridge/

Quinoa can also be used to make deserts and biscuits this little gems uses are endless, cheap and good for you!!!
http://allrecipes.co.uk/recipe/41065/gluten-free-chocolate-quinoa-cake.aspx
https://skinnyfitalicious.com/quinoa-cookies/