Ingredients

• 1 pound beef tenderloin, trimmed of visible fat
• 1 teaspoon ground black pepper
• 1/2 cup onion, thinly sliced
• 1/4 cup fresh flat-leaf parsley, chopped
• 2 cloves garlic, minced
• 2 bay leaves
• 3 tablespoons red wine vinegar
• 1 large sweet onion, cut into four 1/2” thick slices
• 1/2 cup Chimichurri Sauce

Preparation

1. Place beef lengthwise on a cutting board. Cut the beef with the meat’s grain into 4 flat even slices. Place each slice between 2 sheets of plastic wrap and pound to 1/4” thickness with a meat mallet. Season with ground pepper and arrange in a 9” x 13” baking dish.
2. In a bowl, combine the 1/2 cup thinly sliced onion, parsley, garlic, bay leaves and vinegar. Whisk thoroughly and pour over the meat. Cover the meat and marinate for 8 minutes; turn meat over and marinate 8 minutes longer.
3. Preheat grill or broiler. Coat sweet onion slices with cooking spray and grill until nicely browned, about 4 minutes per side. Place onion slices onto a platter.
4. Place beef on grill or broiler and dispose of marinate. Grill marinated beef for 2 minutes per side for medium rare or to the internal temperature of 150º F for medium. Arrange beef slices on top of grilled onions.
5. Serve with 3 ounce portions cooked tenderloin with 2 tablespoons Chimichurri Sauce. 

Helpful hints

• Use a stronger white or yellow onion in the marinade and grill the sweet onion slices.
• For a lower protein diet, adjust portion of beef according to your meal plan and protein prescription.