Flank steak is delicious when it’s marinated in Cuban flavors and grilled, and this tasty flank steak is low-carb, Keto, low-glycemic, gluten-free, South Beach Diet friendly, and can easily be Paleo or Whole 30 with the right ingredients. Use the Diet-Type Index to find more recipes like this one. Click here to PIN Grilled Cuban Flank Steak! In…