Heat olive oil in a large skillet over medium-high heat, add diced onion and cook for 2 minutes until softened.
Add ground beef and brown for 5โ6 minutes, breaking it apart, then stir in cumin, salt, and pepper.
Add cauliflower florets, cover, and cook for 8โ10 minutes until cauliflower is tender, stirring occasionally.
Squeeze lime juice over the skillet, top with fresh cilantro, and serve.
Photo: Nagesh Badu / Unsplash