Wash the Morogo thoroughly to remove any dirt or grit. Trim off any tough stems and discard. Chop the leaves into small pieces.
Heat the oil in a large pan or pot over medium heat. Add the chopped onion and sauté until translucent and fragrant.
Add the minced garlic to the pan and cook for an additional minute, stirring constantly to prevent burning.
Add the diced tomato to the pan and cook until it softens and starts to break down, about 3-4 minutes.
Add the ground coriander, cumin, paprika, salt, and pepper to the pan. Stir well to coat the onions, garlic, and tomato with the spices.
Add the chopped Morogo leaves to the pan. If using Swiss chard or spinach, you can add them at this stage as well. Stir to combine the ingredients.
Reduce the heat to low and cover the pan. Allow the Morogo to cook for about 15-20 minutes, or until the greens are tender and cooked through. Stir occasionally to prevent sticking.
Once the Morogo is cooked, taste and adjust the seasoning as needed. You can add more salt, pepper, or spices according to your preference.
Remove from heat and serve hot as a side dish or as a main course with rice, pap (a South African cornmeal porridge), or bread.