Home cooked cheap meal recipe! whole meal below serves a family of 4 for around £1.60

Recipe - Cost of living as we all know Is going up. So I been experimenting with food and asda essential range.
This whole meal below serves a family of 4 for around £1.60 for the whole meal. Now that's around 40p each. If you work out the price of the quantity you use for each product.
(Everything was a essential item).

Some may say heart attack on plate to me a hearty meal that was cheap and didn't disappoint. 

Mac and cheese using penne.
Sauce .
2 tb spoon butter.
3/4 soft cheese.
Small handful red Leicester.
Dice half onion.
2 ladel of garden peas.
1/4 cup plain flour.
1/2 cup water.
Pepper to season.
Mix into half cooked penne pasta.
Dice 3 rashers of bacon lightly fry and mix into pasta.
Grated cheese on top with one slice bacon chopped. 

Baked 25mins fan oven 200c.