Heat oil in a large skillet over medium heat. Cook garlic, onion, turmeric, and ginger until vegetables are tender, 3 to 4 minutes. Stir in collard greens and 2 tablespoons water and cook until greens are bright green and tender, about 2 minutes.
Add crumbled tofu and cook, stirring, until heated through, about 2 minutes. Season with salt and pepper.