Seared Steak Cheese Toast - Rothliving

Ingredients

• 1 cup pickled red onions
• 1 cup heirloom grape tomatoes
• 2-3 cups spring mix or arugula
• 2 tablespoons olive oil
• Kosher salt
• freshly ground black pepper
• 1 pound beef skirt steak, cut into 2 pieces and trimmed of excess fat
• 1 French sourdough bread, sliced on a bias angle
• 1/2 cup mayonnaise
• 1 teaspoon fresh tarragon
• 2 teaspoons lemon juice
• 1 clove garlic, minced
• 5 ounce wheel boursin cheese, crumbled
• 3 ounces vinaigrette