Prep & Bake Golden Mozzarella Portobello Sandwiches

Prep & Bake Golden Mozzarella Portobello Sandwiches

🥘 Ingredients

  • Black Pepper
    1 tsp
  • Brioche Buns
    4 unit
  • Buttermilk Ranch Dressing
    6 oz
  • Crispy Fried Onions
    2 unit
  • Fry Seasoning (divided)
    2 tbsp
  • Mayonnaise
    4 tbsp
  • Mixed Greens (salad)
    8 oz
  • Mozzarella Cheese
    1 c
  • Olive Oil
    4 tsp
  • Oven-Ready Tray
    2 unit
  • Panko Breadcrumbs
    1 c
  • Portobello Mushrooms
    4 unit
  • Salt
    1 tsp
  • Smoky Mustard
    4 oz
  • Tomato
    2 unit

🍳 Cookware

  • oven
  • small bowl
  • aluminum foil
  • small bowl
  1. 1
    Adjust rack to top position and preheat oven to 425 degrees. Wash and dry produce. Using the tip of a spoon, remove and discard black gills from undersides of Portobello Mushrooms ; trim any large stems if necessary. Slice Tomato into ¼-inch-thick rounds.
    Portobello Mushrooms: 4 unit, Tomato: 2 unit
  2. 2
    Drizzle both sides of each mushroom with 2 tsp Olive Oil ; rub to evenly coat. Season all over with half the Fry Seasoning , Salt , and Black Pepper . Place mushrooms, top sides down, in Oven-Ready Tray (divide between two trays for 4 servings). Evenly sprinkle mushrooms with Mozzarella Cheese . In a small bowl , combine Panko Breadcrumbs , remaining Fry Seasoning, a large drizzle of olive oil, salt, and pepper.
    Olive Oil: 4 tsp, Fry Seasoning: 2 tbsp (divided), Salt: 1 tsp, Black Pepper: 1 tsp, Oven-Ready Tray: 2 unit, Mozzarella Cheese: 1 c, Panko Breadcrumbs: 1 c
  3. 3
    Evenly sprinkle panko mixture over mushrooms, lightly pressing to adhere. Tightly cover tray with aluminum foil . Bake on top rack (be sure your oven has preheated!) until mushrooms are tender, ⏱️ 15 minutes . (For 4 servings, bake two trays side by side on top rack.) Once mushrooms are tender, remove foil and cook until cheese and panko are golden brown, ⏱️ 5 minutes more. TIP: Watch carefully to avoid burning!
  4. 4
    While mushrooms bake, in a second small bowl , combine Mayonnaise and Smoky Mustard . Halve and toast Brioche Buns .
    Mayonnaise: 4 tbsp, Smoky Mustard: 4 oz, Brioche Buns: 4 unit
  5. 5
    Spread cut sides of buns with smoky mustard sauce; fill buns with sliced tomato, mushrooms, and Crispy Fried Onions . Divide sandwiches and Mixed Greens between plates. Drizzle remaining Buttermilk Ranch Dressing over salad if desired and serve.
    Crispy Fried Onions: 2 unit, Mixed Greens: 8 oz (salad), Buttermilk Ranch Dressing: 6 oz