INGREDIENTS
1
Onion, medium
2 tbsp
Oregano, fresh
4
Portobello mushrooms, large
1
Red bell pepper, large
1/4 cup
Vegetable broth
1 tbsp
Soy sauce, reduced-sodium
1 tbsp
All-purpose flour
1/2 tsp
Pepper, freshly ground
2 tsp
Olive oil, extra-virgin
4
Buns, whole-wheat
3 oz
Provolone cheese, reduced-fat