Lightly fry your sausages for just long enough to add some colour on the outside (about 5 minutes).

Add your onion to the bottom of your slow cooker dish (or casserole dish).

Add the stock, tomatoes, herbs, beans and paprika to the slow cooker and stir to mix.

Place the sausages on the top of the tomato base and push them down to submerge slightly.

Cook on low for 8 hours. If you don’t have a slow cooker, put the casserole in the oven and bake at 190°C for 60 minutes.