Prepare the Greens: Thoroughly wash the collard greens.
Fold each leaf in half and slice away the tough center stem. Stack the de-stemmed leaves, roll them up tightly, and slice them into long, thin strips (julienne).
Sauté the Base: In a large, heavy-bottomed pot or Dutch oven, heat the olive oil over medium heat.
Add the diced turnip, chopped onion, and chipotle chili.
Sauté for 5-7 minutes, until the onion is soft and translucent.
Wilt the Greens: Add the prepared collard greens and salt to the pot.
Continue to sauté, stirring frequently, for another 3-5 minutes until the greens have wilted down significantly.
Simmer to Tenderness: Pour in the vegetable stock, bring the liquid to a boil, then reduce the heat to low.
Cover and let it simmer for 20 minutes, or until the greens are very tender and the turnips are soft.
Remove the chipotle chili halves before serving.
Don't Toss the Stems: Finely chop the tender parts of the collard green stems and sauté them along with the onion and turnip for extra texture and no-waste cooking.