FRENCH ONION & ROAST BEEF GRILLED CHEESE SANDWICH RECIPE - (4.4/5)

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French Onion & Roast Beef Grilled Cheese Sandwich Recipe - (4.4/5) image

Provided by á-34480

Number Of Ingredients 10

1 tablespoon olive oil
1 small onion, sliced
1 teaspoon thyme leaves
Kosher salt
Pepper
4 slices (1/2-inch-thick) rye bread
1 tablespoon unsalted butter or olive oil, melted
1 tablespoon whole-grain mustard
2 ounces Gruyère cheese, grated
2 slices roast beef

Steps:

  • Heat olive oil in a medium skillet over medium heat. Add onion, season with 1/4 teaspoon each salt and pepper, and cook, covered, stirring occasionally, about 5 - 7 minutes. Reduce the heat to medium-low, stir in thyme leaves and cook, uncovered, stirring occasionally, until the onions are golden brown, (add 1 tablespoon water to the skillet if the onions start sticking). Brush one side of each slice of bread with butter or oil. Form sandwiches with the bread, whole-grain mustard, Gruyère cheese, roast beef, and the onion mixture. Cook the sandwiches, covered, until the bread is golden brown and crisp and the cheese has melted, 4 to 5 minutes per side.

massinissa djoulah
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I'm so glad I found this recipe. It's a new favorite in my household.


Ahmed Sheka325
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This sandwich is the perfect comfort food. It's warm, cheesy, and savory, and it always hits the spot.


Taeja.T Francis
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I love the way the caramelized onions add a sweet and savory flavor to this sandwich. It's a perfect balance of flavors.


Sofía Garone
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This sandwich is so delicious, it's hard to believe it's so easy to make. It's a must-try for any fan of grilled cheese sandwiches.


Robin Das
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I've made this sandwich for my friends and family, and they all loved it. It's a great recipe to have on hand for when you need a quick and easy meal.


Rainbow Unicorns
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This sandwich is perfect for a special occasion, like a birthday or anniversary. It's also a great way to show your loved ones how much you care.


Sakibu Yahuza
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I'm always looking for new and creative ways to use roast beef, and this sandwich is definitely a winner. It's a unique and delicious way to enjoy this classic ingredient.


Tim Disney
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This sandwich is so easy to make, even beginner cooks can make it. It's a great recipe for kids to learn how to cook.


Lucy Bruyneel (Lucy)
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I've tried several different variations of this sandwich, and my favorite is to add a slice of avocado. It adds a creamy texture and a bit of healthy fat.


Fg Jihad
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I love that this sandwich can be made with leftover roast beef. It's a great way to use up leftovers and create a delicious new meal.


Tuyel Ahmed
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This sandwich is perfect for a quick and easy lunch or dinner. It's also great for parties or potlucks.


Beki Mekonen
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I've made this sandwich several times now and it's always a crowd-pleaser. Everyone loves the combination of flavors and the fact that it's so easy to make.


Marcel Kola
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This sandwich is the perfect comfort food. It's warm, cheesy, and savory, and it always hits the spot.


Anyi Chuks
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I'm not a big fan of roast beef, but this sandwich was so good that I ate the whole thing! The caramelized onions and melted cheese were the perfect complement to the beef.


Mohamed Elkady
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I made this sandwich for lunch today and it was delicious! The combination of flavors was amazing and the sandwich was really easy to make.


Natalie Cruz
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This French onion roast beef grilled cheese sandwich was a hit with my family! The flavors of the caramelized onions, melted cheese, and tender roast beef were perfect together.