Heat oil in a large skillet over medium-high.
Add potatoes and cook, stirring often, until golden and just tender—about 6 minutes.
Push potatoes to one side. Add beef, onion, and red bell pepper to the skillet.
Season with salt and pepper. Cook, breaking up meat, until browned.
Stir in green chiles, chili powder, cumin, smoked paprika, and cilantro.
Cook until everything is tender and well combined, about 6–8 minutes.
See full steps with tips & photos → https://theboatshedcafe.com/beef-and-potato-skillet/