Heat the oil in a pan. Fry the bacon for 4-5 minutes until crispy, remove and drain. Clean and wash the spring onion and cut into rings. Set aside some spring onion, bacon and fried onions for sprinkling.
Mix milk, cream cheese, fried onions, bacon, spring onion and mustard, season with salt and pepper and arrange in a bowl. Sprinkle with bacon, fried onions and spring onions.