2 1/2 pounds Kansas City Strip* steak, trimmed
1 tablespoon McCormick Montreal Steak Seasoning
1-2 tablespoons olive oil
1 tablespoon balsamic vinegar
1 large onion, finely chopped
3 carrots, peeled, cut in 1-inch dice
2 celery sticks, cut in 1-inch dice
8 ounces sliced mushrooms
2 cloves garlic, minced
2 teaspoons smoked paprika
1 teaspoon fresh minced thyme
1 teaspoon fresh minced oregano
1/2 teaspoon fresh minced rosemary
2 bay leaves
1/2 teaspoon kosher salt
1/4 teaspoon pepper
2 cups beef stock
1 tablespoon cornstarch
1/2 cup Cabernet, chilled
Salt and pepper to taste
1 package prepared puff pastry sheets
1 egg, beaten

*You can use any type of steak here — I’m just loyal to my hometown cut.