Fry off the mince in a large pan with the chopped onion and garlic.
Once brown, throw this into your slow cooker with the spices, stock (made up with water), tomatoes, tomato puree, diced pepper and kidney beans.
Cook on a low heat for 4-6 hours.
Roughly 45 minutes before you’d like to serve, check the seasoning adding extra chilli or salt and pepper to taste.
5 minutes before serving, warm your tacos.
These can be served with sour cream, grated cheese, salsa, avocado and a whole range of other accompaniments. It’s up to you!