"The bakery" has been created in support of Lidl’s charity partner Jigsaw, which helps young people with their mental wellbeing.
The supermarket chain will host a range of activities in the evenings, including meditation, acoustic, laughter yoga, and "singalong socials".
Lidl created the campaign in-house, and worked with Catapult Event Productions to deliver the activation.
The Bakery ambassador Maria Walsh said: "It’s not often that we get to sit down and take a moment in our busy lifestyles. Lidl’s pop-up 'The bakery' provides a safe space to relax with a cup of tea, some tasty treats and to speak about youth mental health or even lend an ear to someone who needs it most.
"Youth mental health is something I am hugely passionate about and we all have a role to play in this. Make sure to pop down to your local pop-up and take part in the fantastic evening activities which are sure you leave you feeling good inside – all in aid of youth mental health."