Wash and trim the beetroot. Unpeeled, place the beetroot in a large saucepan and cover with water.
Bring to the boil, then reduce to a simmer until just tender, about 30 minutes. Drain pot.
Once cooled, peel and cut into chunks. Add to a food processor along with feta. Pulse until combine for a few seconds. Careful not to puree.
Place in base of mason jar. Layer all other ingredients, sprinkling in chia seeds as you go.
When ready to eat, use a fork to combine base dressing through slightly and enjoy. Or pour into a bowl.