For a light and refreshing meal, try making a beef and spinach salad. Start by grilling lean beef steak to your desired doneness. Let it rest and slice it into thin strips. In a large bowl, combine fresh spinach leaves, cherry tomatoes, cucumber slices, and sliced red onions. Toss with a homemade vinaigrette made from olive oil, balsamic vinegar, Dijon mustard, and honey. Top the salad with the sliced beef and sprinkle with crumbled feta cheese. This salad is packed with protein, vitamins, and antioxidants, making it a healthy and satisfying option for lunch or dinner.