Prep Greens: Wash and finely chop the turnip greens. Set aside.
Heat Oil: In a large skillet or kadhai, heat oil or ghee. Add mustard seeds and cumin seeds. Let them splutter.
Aromatics: Add hing (if using), followed by minced garlic, grated ginger, and green chilies. Sauté until fragrant.
Add Onion & Tomatoes: Stir in chopped onions and cook until golden. Add tomatoes and cook until soft.
Spice it Up: Add turmeric, red chili powder, coriander powder, and salt. Stir well.
Add Greens: Mix in the chopped turnip greens. Stir to coat with spices. Cover and cook on medium heat for 10–12 minutes, stirring occasionally.
Optional Thickening: If desired, add besan to thicken. Cook for an additional 5 minutes.
Finish & Serve: Squeeze in a bit of lemon juice before serving. Enjoy with roti or steamed rice.