Steak Sandwiches With Roasted Tomatoes, Parmesan, And Radicchio Recipe

Ingredients For Steak Sandwiches With Roasted Tomatoes, Parmesan, And Radicchio Recipe

• 12 ounce Cherry tomatoes
• 1 tablespoon Extra Virgin Olive Oil, Plus More For Drizzling
• 1 teaspoon Minced fresh thyme leaves
• Kosher Salt And Freshly Ground Black Pepper
• 0.5 Medium Red Onion, Thinly Sliced
• 2 tablespoon Red wine vinegar, plus more for pickling onion
• 1 pound Boneless beef steak, such as hanger, skirt, tri tip, tenderloin, or strip
• 2 tablespoon Vegetable oil
• 0.5 cup Mayonnaise
• 0.5 cup Sour cream
• 5 Oil packed anchovy fillets, drained and roughly chopped
• 2 ounce Parmigiano reggiano cheese, 1 ounce grated and 1 ounce shaved with a vegetable peeler, divided
• 4 ounce Radicchio, cored and thinly sliced
• 1 Handful picked flat leaf parsley leaves