Steps
1. Heat a skillet over medium-high heat and melt the butter.
2. Add the sliced beef to the skillet and cook until browned and cooked through.
3. In a bowl, mash the avocado with a fork until smooth.
4. Once the beef is cooked, transfer it to the bowl with the mashed avocado.
5. Mix the beef and avocado together until well combined.
6. Sprinkle the shredded cheese and crushed nuts over the beef and avocado mixture.
7. Serve the keto avocado beef bowl immediately.