Ohhhh....very good! I've had this recipe saved for a while and wish I would have tried it sooner. I was wanting a quick, light but satisfying meal and this fit the bill perfectly. I grilled one large portablella mushroom on our Foreman grille and served it on lightly toasted rye bread. I love all these fresh flavors together . Thanks for the keeper recipe, I know I'll be eating this sandwich often.
This is good! Portobellos make such a great sandwich! Used regular bread instead of the English muffins and I roasted the portobellos at 400 degrees F for 10 minutes. Makes a nice, light meal but fills you up!! Thanks!!