In a cast iron skillet, add the extra virgin olive oil over medium heat.
Add onions and crushed red pepper.
Cook until onions are soft and golden.
Add garlic and cook for about 30 seconds.
Add sweet potato and cook until soft. In case you need, add a few tablespoons of water or 1/4 cup to help steam the sweet potato*.
Add shrimp and cook for 2-3 minutes, or until they turn pink*.
Turn the heat to low and add kale, stirring until wilted.
Season to taste with salt and pepper.
Notes
*Don't add more than 1/4 cup of water to cook the sweet potato because it may become soggy. Also cover the skillet with a lid for about 2 minutes. It will help to cook the sweet potato faster.*I like to cook first the shrimp and set it aside if I'm cooking with more than 2 cups of shrimp to avoid overcrowding the skillet.HERE is a complete list of shrimp recipes for you to try. They are healthy, easy to make and great as leftovers too.