I have purchased the kale-slaw mix from the supermarket. My family loves it. It contains nuts and carrots and a few other veggies. They love the dressing and it is great for an easy accompaniment after a busy day.
Personally I am not a kale fan!
I find it boring to cook with, & we're not very good at eating it! Even when our ex chef daughter has cooked it for us, it's taken us a long time to chew it, but the last time she cooked it, it was very easy to eat! I wouldn't mind eating it, if it was always that easy to eat! I've never had it in a salad nor a drink though.