Steps
1. Preheat a skillet over high heat.
2. Season the beef steak with salt and pepper.
3. Once the skillet is hot, sear the beef for 30 seconds on each side for a rare finish.
4. While the beef cooks, toss kale, spinach, and cooked quinoa with olive oil and lemon juice in a bowl.
5. Slice the seared beef thinly and place on top of the salad.
6. Serve immediately.