Philly Cheese Portobello Sandwiches

 Ingredients

• 2 teaspoons vegetable oil
• 1 medium onion, thinly sliced
• 4 large portobello mushrooms, stems and gills removed, thinly sliced
• 1 large bell pepper, thinly sliced
• 2 teaspoons dried oregano
• 1/2 teaspoon freshly ground pepper
• 1 tablespoon all-purpose flour
• 1/4 cup vegetable broth
• 1 tablespoon soy sauce
• 1/4 cup provolone cheese, thinly sliced or grated
• 4 vienna buns, split and lightly toasted

Method

1. Heat oil in a skillet over medium-high heat.
2. Add onion and cook until soft and beginning to brown.
3. Add mushrooms, bell pepper, oregano, and pepper and cook while stirring until vegetables are soft (about 7 minutes).
4. Reduce heat to low.
5. Sprinkle flour over vegetables and stir to coat.
6. Stir in broth and soy sauce.
7. Bring to a simmer.
8. Remove from heat.
9. Lay cheese on top of vegetables, cover and let stand until melted (1 to 2 minutes).
10. Divide mixture into 4 with a spatula, leaving melted cheese on top.
11. Scoop portions onto toasted buns and serve immediately.

Source

https://www.eatingwell.com/recipe/248986/portobello-philly-cheese-steak-sandwich/