Warm it and add the olive oil, garlic, bacon, smoked paprika and onion. Sweat on medium till soft and fragrant. Add the beer and bring to the boil.
Put all of the mussels and the chili and parsley into the pot and add the lid. Bring the pot back to the boil and shake a couple of times. This will take about 5 minutes. With the lid off check all of the mussels. They should be open. Discard any that dont open.