This was really good, I thought. My husband is more into plain grilled burgers, so he didn't care for it much; this was sort of a fancy flavored burger (the thyme and Worcestershire sauce are prominent). As far as the mushrooms go, you can't tell much that they're in there as far as flavor/texture, but they sure make a moist burger! I certainly would not spend the extra money on portobello mushrooms again. If I make this again I will buy the less expensive button mushrooms. Also, I put grilled onions instead of the relish for a more authentic patty melt!
Portobello & Beef Patty Melt
From EatingWell: January/February 2008
This diner classic gets a makeover by replacing some of the ground beef with finely chopped portobello mushrooms, which add moisture and flavor. We like a smear of pickle relish on top, but you could try chutney, mustard or hot pepper relish in its place. Make it a Meal: Round out the plate with Oven Sweet Potato Fries and Balsamic & Parmesan Roasted Cauliflower.
13 Reviews for Portobello & Beef Patty Melt
This was so easy to make and the burgers were so juice. I did not use the relish either and just served it with a slice of reduced fat swiss cheese.
Very easy to make, and very good. I can taste the mushrooms, but that's good because I'm fond of them. Both of my fussy boys (ages 4 and 6) loved eating the burgers.
Easy and yummy, you'll never make an ordinary burger again :)