OPEN-FACED CHEESEBURGERS WITH MUSHROOMS AND ONIONS

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Open-Faced Cheeseburgers with Mushrooms and Onions image

Fontina is especially good on this burger. When heated, its texture becomes remarkably creamy and luscious.

Provided by Martha Stewart

Categories     Food & Cooking     Ingredients     Meat & Poultry     Beef Recipes     Ground Beef Recipes

Time 25m

Number Of Ingredients 9

2 tablespoons olive oil
10 ounces white mushrooms, trimmed and thinly sliced
Coarse salt and ground pepper
1 medium red onion, halved and thinly sliced
1 teaspoon red-wine vinegar
1 pound ground beef chuck
1 plum tomato, cored and cut lengthwise into 4 slices
2 ounces Fontina cheese, cut into 4 slices
4 slices sourdough bread (1 inch thick), toasted

Steps:

  • In a large skillet, heat 1 tablespoon oil over medium-high. Add mushrooms; season with salt and pepper. Cook, stirring occasionally, until mushrooms release their liquid and start to brown, 5 to 7 minutes; transfer to a bowl (reserve skillet).
  • Add onion and remaining tablespoon oil to skillet; season with salt and pepper. Cook, stirring occasionally, until onion starts to brown, 5 to 7 minutes (if bottom of skillet becomes too dry, add a little water and scrape up browned bits). Return mushrooms to skillet; stir in vinegar and set aside.
  • Heat broiler, with rack set 4 inches from heat. Gently form meat into 4 3/4-inch-thick patties; season with salt and pepper. Place on a rimmed baking sheet, and broil 3 minutes.
  • Remove baking sheet; top burgers with tomato and cheese slices. Broil until cheese is melted and burgers are medium-rare, 1 to 2 minutes more. Serve burgers on toasted bread, with sauteed mushrooms and onion alongside.

Andy Bader
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These cheeseburgers were just what I was looking for! They were easy to make, and they were so delicious.


Md jone Kr
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I made these cheeseburgers for my family, and they loved them! The recipe was easy to follow, and the burgers turned out perfectly.


Md Ziauddin Bablu
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These cheeseburgers were a disappointment. The meat was tough, and the mushrooms and onions were soggy. I wouldn't recommend this recipe.


Yel Maharjan
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Meh.


LUCAS BLZ
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These cheeseburgers were so easy to make, and they were absolutely delicious. I'll definitely be making them again soon.


ht goat
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The cheeseburgers were a little too greasy for my taste. I think I'll try a different recipe next time.


Tajo Miah
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These cheeseburgers were amazing! The meat was juicy and flavorful, and the mushrooms and onions were cooked to perfection. I highly recommend this recipe.


Malik hasnat Hasnat ali
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The cheeseburgers were good, but they weren't anything special. I've had better.


Sonam Theeng
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I've made these cheeseburgers several times, and they're always a hit. They're easy to make, and they're always delicious.


Hassan butt Butt
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These cheeseburgers were just okay. The meat was a little dry, and the mushrooms and onions were bland. I wouldn't make them again.


Iftikhar Chaudri
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Delicious! I made these cheeseburgers for a party, and they were a huge success. Everyone loved them.


Byaruhanga Isacc
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The cheeseburgers were easy to make and very tasty. I used a blend of ground beef and ground pork, and it worked out well. I also added some chopped bacon to the meat mixture, which gave it a nice smoky flavor.


Kuwar Edit
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I followed the recipe exactly, and the burgers turned out great! The only thing I would change is to add a little more salt and pepper to the meat mixture.


Eliana Gomez
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These cheeseburgers were a hit with my family! The mushrooms and onions added a delicious flavor, and the cheese melted perfectly. I'll definitely be making these again.