Layer the cauliflower, chickpeas, tomatoes, carrots, garlic, curry powder, honey, ginger, crushed red pepper flakes, 2 teaspoons salt and a few grinds of black pepper in a large resealable plastic bag. Squeeze out the air from the bag and seal. Freeze until ready to use, up to 3 months. Thaw in the refrigerator for at least 24 hours before cooking.
Pour the contents of the bag into a 6-quart slow cooker. Cook on low until the cauliflower is tender and can easily be pierced with a paring knife, 7 to 9 hours. Pour in the coconut milk and gently stir, being careful to keep the cauliflower quarters intact. Season to taste with salt and pepper. Serve with lime wedges, cilantro and cashews for topping.
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