Smokey bacon and bean warming winter stew

I was recently set the challenge of creating a meal for four people for under £5 to see show that is is possible to eat properly at the end of the month when you've spent all your money - that and it was the perfect opportunity for me to start budgeting properly - we have a wedding and house buying on the horizon, and I still don't know where all our money goes! So, I brainstormed, flicked through our recipe books and got used to using my slow cooker! (this thing is a dreeeam.)

Anyway. I came up with this BBQ bean stew and hotfootted it to LIDL to get all the ingredients - that place is SO cheap, I have no idea why I haven't been before. (I've assumed you've already got the herbs and spices in your store cupboard - if you haven't, then you probably need to start one!) 

I went slightly over £5, but that's because I ended up with FAR more veg than I needed - which is perfect as these can be used the rest of the week. Or, to keep it under £5 or have a veggie option, switch out the bacon for sweet potatos.

This meal creates 4 servings - 2 of which we had on the night, and 2 we boxed up and put in the freezer for another day!

You will need: (Lidl prices)
1 red onion (56p for 4!)
2 carrots (43p for a bag!)
2 cloves of garlic (89p for 4 bulbs)
Pack of bacon (£1.69)
Kidney beans (33p a can)
Butter beans (any beans will do though) (30p a can)
Tomato passata (35p)
Squirt of BBQ Sauce (72p)
1 teaspoon of chilli flakes
1 teaspoon smoked paprika

It's super easy to make, you just peel and chop the veg, chop the bacon and put it with all of the beans and other stuff into the slow cooker. Leave on for a few hours until cooked.