One of the few vegetables that contain a decent amount of protein, kale has protein that are better bio available to the body than compared to meat protein. Certainly a great vegetable to add in a vegetarians diet. A popular snack is kale chips, where you drizzle some extra virgin olive oil or avocado oil on your kale, add some salt and then bake in an oven until dry. This tastes absolutely delicious and is a great, crunchy and super healthy snack. A lot of people also add kale to their smoothies in order to boost the nutritional value.