Grilled Steak Salad with Tzatziki Sauce - tender marinated steak is served on top of salad with a light and refreshing yogurt sauce for an easy, low-calorie meal!
In a medium bowl, whisk together all the the ingredients for the marinade, except the olive oil. Then slowly stream in the olive oil to emulsify. Add the steak; toss to coat and let marinate for 15 minutes.
Lightly oil the grill grates. Remove steak from the marinade and pat dry. Place on grill and cook for 4 minutes per side for medium-rare (an internal temperature of 135 degrees F.) Transfer to a cutting board and let rest for 5 minutes. Slice thinly across the grain.
Divide the lettuce and tomatoes among plates; drizzle with any juices that accumulated from the cutting board, and top with the steak and Tzatziki Sauce. Serve and enjoy!