Grilled Steak Salad with Tzatziki Sauce by Ioana - ioanacooks

Ingredients

• 1 pound sirloin steak
• 1/2 cup cherry tomatoes, halved
• 1 head Romaine lettuce, chopped (about 6 cups)
• 1 teaspoon Dijon mustard
• 2 cloves garlic, minced
• 1/2 teaspoon dried Italian seasoning
• 1/8 teaspoon kosher salt
• Pinch of black pepper
• 1/4 cup red wine vinegar
• 3 tablespoons extra-virgin olive oil
• Tzatziki sauce, for serving