In terms of cooking possibilities and taste, chard is comparable to spinach. However, chard is usually grouped with specialty greens like kale in supermarkets. Chard and kale have leaves with similar textures. Both chard and kale are best served with the leaves taken off the stems. However, you can cook chard stems, so they become tender, while kale stems don't tenderize and are usually discarded. The biggest difference between chard and kale is the taste. Kale has an earthy, strong, and somewhat bitter flavor that not everyone enjoys. Chard, on the other hand, is much milder. That makes chard a go-to vegetable that's easy to add to your diet when you're trying to eat healthier.