Cook bacon in a large skillet until crisp, remove and crumble, leaving 2 tablespoons fat in the pan.
Season chicken thighs with salt, pepper, and onion powder, then pan-sear skin-side down for 6 minutes until golden, flip and cook 4 minutes more, then transfer to a plate.
Remove most fat, add chopped kale to the skillet and cook 3 minutes until wilted, then stir in heavy cream and crumbled bacon.
Return chicken to the skillet for 2 minutes to warm through and serve.