Portabella And Provolone

1. 1

   Preheat oven to 400u00b0.

2. 2

   In a small bowl, whisk the oil, vinegar, salt, and pepper together; set aside.

3. 3

   Moisten a paper towel and wipe the mushrooms to remove dirt.

4. 4

   Cut out the stems and the gills; place the mushrooms in a glass dish, round side up; pour the oil mixture over the mushrooms, rubbing it in with your fingers; turn the mushrooms and lightly sprinkle the insides with salt and pepper; marinate for 10 minutes.

5. 5

   Remove the mushrooms from the marinade and place on a baking sheet, rounded side up.

6. 6

   Bake 10-12 minutes or until they begin to brown and shrink a bit.

7. 7

   Turn the mushrooms and bake 10-12 minutes, or until some of the liquid has surfaced and the mushrooms have browned further.

8. 8

   Remove from oven; let sit until cool enough to handle.

9. 9

   Mix the cheeses and oregano together in a bowl.

10. 10

    Scatter the cheese mixture evenly over the inside of 4 mushroom caps, followed by a tomato slice; sprinkle with salt and pepper to taste, and place the remaining 4 mushroom caps on top, rounded side up.

11. 11

    Heat a large nonstick skillet over medium heat for 2 minutes; put the mushroom sandwiches in the skillet (in batches if needed), cover, and cook 3-5 minutes, or until the undersides are dark brown and the cheese has begun to melt.

12. 12

    Uncover, and turn the mushroom sandwiches, pressing firmly with a spatula to flatten them slightly.

13. 13

    Cover and cook 2-3 minutes or until the undersides have turned a shade or two darker and the cheese has melted completely; let cool slightly and cut in half; serve.

* Per serving · 4 servings · Values may vary.