Seared Steak and Spinach - California Ripe Olives

Ingredients

• 1 cup baby spinach, washed and stems removed
• 1 cup California Black Ripe Olives, halved
• 1 cup cooked beets, diced
• 1 teaspoon olive oil
• Salt and pepper to taste
• 3/4 pound filet mignon, or other lean cut of beef
• 4 ounces red onion, sliced
• 1/4 cup beef stock
• 3 tablespoons red wine vinegar
• 1 tablespoon Port wine
• 2 tablespoons shaved parmesan cheese