Add in the vegetable stock, followed by the lentils, oregano, coconut milk and sweet potato. Stir then cover and cook on a low heat for 5 minutes.
Add in fresh spinach and stir through until wilted. Finish with lemon juice and season to taste with salt and pepper.
Garnish with chopped coriander then serve with crusty bread or cooked grain of choice.
Notes
You can absolutely make this recipe using raw sweet potato (approx 4 cups). Just add them to the broth and coconut milk first and allow to cook until just softened before adding the lentils. Once added allow the full mixture to simmer for another 5 minutes. Note that doing so might release more water, so feel free to cook/reduce the sauce to your preferred thickness.
Kale or swiss chard would be great here in place of spinach.