Slice the heads off the peppers and then open up and pull out the seeds.
Using your hands add a layer of soft cheese around the sides and bottom so that you have a lovely cheesy flavour when cooked.
In a mixing bowl grab all the seasonings and the mince and onion and mix well with your hands like you would if you were making burgers.
Push down the burger mixture until the half way line.
Add a layer of cheese.
Add more burger mixture until you are at the ¾ mark.
Then in a mixing bowl mix together a tablespoon of Greek yoghurt with a teaspoon of tomato puree and another teaspoon of Worcester sauce. Mix them together and add a layer like you are adding sauce to a sandwich.
Then add the mince mixture again until you hit the top of the pepper. Then press down and level it.
Place the peppers in the bottom of your slow cooker on high and cook for 6 hours.
Take them out, drain any excess water and then add an extra layer of cheese and serve.