Kale is a good vehicle for crushed red pepper. One common way to organize it is to immediately fry kale leaves in olive oil with some garlic and crushed red pepper. Remove from heat and drizzle on some lemon juice. This method will work for cabbage, broccoli, and Brussels sprouts https://augustagxyk.blogdal.com/31601681/the-2-minute-rule-for-red-chili-pepper-crushed-mixed-with-seeds