Preheat oven to 350. Cut out the stalks in a bunch of kale and chop the leaves into medium-sized pieces. Spread out in an oven-safe dish (e.g. 9x12 pan or similar) and drizzle with olive oil. Sprinkle with salt and put in the oven for 10-15 minutes. Make sure not to burn them (but if the edges start to brown it's okay).

Original source.