Cool rice if freshly cooked. If using leftover rice, microwave until it warms through and is not lumpy.
Heat 2tbsp oil in a pan; add all the tempering ingredients, once the dals start to lightly brown and seed start to splutter, add the chopped onion and green chilies.
Once the onions are lightly browned, add chopped broccoli and cook until the florets are tender, about 5-6 minutes.
Add this mixture to rice along with turmeric, salt and lemon juice. Mix well and serve immediately.