I prepared this using frozen chopped kale. I cooked the kale in the microwave for 4 minutes, stirred and added the apple before cooking another 3 minutes. I used roasted garlic whole grain mustard (another eating well recipe) in place of the mustard in the recipe. This was delicious and I will make it again. I reheated leftovers with a bit of cooked bulgar--yummy all mixed together.