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- 1 lb roast beef, thinly sliced - 4 slices sharp cheddar cheese - 4 slices sourdough bread - 2 tablespoons Dijon mustard - 2 tablespoons butter, softened - 1 small onion, thinly sliced - 1 tablespoon olive oil - Salt and pepper to taste - 1 tablespoon fresh chives, chopped (for garnish) When making a Roast Beef Cheddar Melt, you need quality ingredients. The roast beef should be thinly sliced. This makes it easy to layer in your sandwich. Sharp cheddar cheese adds a rich flavor that melts nicely. Sourdough bread gives a great crunch when toasted. For additional flavor, Dijon mustard adds a nice tang. Softened butter helps to toast the bread to a golden brown. Caramelized onions bring sweetness and depth. Olive oil is key for cooking the onions just right. Season with salt and pepper to enhance all the tastes. Finally, fresh chives not only add color but also a fresh kick. With these ingredients, you set the stage for a tasty and hearty meal. {{ingredient_image_1}} - Heat 1 tablespoon of olive oil in a skillet over medium heat. - Add 1 small onion, thinly sliced. Cook for 10-12 minutes. Stir often. - The onions should turn golden and sweet. Season with salt and pepper to taste. - Take 4 slices of sourdough bread. - Spread 2 tablespoons of Dijon mustard on one side of each slice. - On the non-mustard side of 2 slices of bread, layer 1 lb of roast beef. - Top the beef with the caramelized onions. - Place 2 slices of sharp cheddar cheese on each sandwich. - Cover with the other slices of bread, mustard side down. - In the same skillet, add 2 tablespoons of softened butter. Melt it over medium heat. - Carefully add the sandwiches. Cook until golden and crispy, about 4-5 minutes. - Flip the sandwiches and repeat until cheese melts and bread is toasted. - Remove the sandwiches from the skillet. Slice them in half. - Garnish each with 1 tablespoon of fresh chives. - Serve on a wooden board or stylish plate, with pickles or a side salad. To make great caramelized onions, start with medium heat. This helps them cook slowly and evenly. Cook them for about 10 to 12 minutes. Stir them often. You want them golden brown, not burnt. Season with salt and pepper to bring out their sweet flavor. Caramelized onions add depth to your roast beef cheddar melt. To boost the taste, try adding garlic powder or smoked paprika. These seasonings can add a nice twist. You can also top your sandwich with fresh arugula or sliced jalapeños. They add a fresh crunch and a bit of heat. Don’t be afraid to mix flavors. It makes your meal more exciting. For crispy bread, use medium heat and plenty of butter. This helps the bread brown nicely. Toast each side for about 4 to 5 minutes. Flip carefully to avoid spilling the cheese. If you want extra melted cheese, cover the skillet for a minute while cooking. This helps the cheese melt evenly, giving you that perfect gooey texture. Pro Tips Use Fresh Ingredients: Always opt for high-quality, fresh roast beef and sharp cheddar cheese for the best flavor. Don't Rush the Onions: Take your time caramelizing the onions; this enhances their sweetness and depth of flavor. Perfect Toasting: Adjust the heat as needed to avoid burning the bread while ensuring the cheese melts perfectly. Experiment with Add-Ons: Feel free to add other toppings like arugula or sliced tomatoes for extra freshness and flavor. {{image_2}} You can swap sharp cheddar for other cheeses. Try gouda for a creamy taste. Swiss cheese adds a nutty flavor that pairs well with the beef. Provolone melts nicely and offers a mild taste. If you want something zesty, pepper jack adds a kick. Add veggies to make your sandwich even better. Sautéed mushrooms add earthiness. Thinly sliced bell peppers bring sweetness and crunch. Spinach or arugula adds freshness. You can also spread pesto or aioli for added flavor. These small changes make a big difference. While sourdough is great, other breads work too. Rye bread gives a unique taste that complements roast beef. A hearty baguette can add crunch and texture. Whole grain bread is a healthy option that still tastes good. Choose any bread that you enjoy for roasting. To store leftovers, wrap each sandwich tightly in plastic wrap. Place the wrapped sandwiches in an airtight container. They will stay fresh in the fridge for up to three days. If you want, you can also separate the components. Keep the roast beef, cheese, and bread in separate bags to avoid sogginess. To reheat your sandwich, use a skillet on medium heat. Add a little butter to the pan for flavor. Place the sandwich in the skillet and cover it with a lid. Heat for about 3-4 minutes on each side. This method keeps the bread crispy and the cheese melted. You can also use an oven. Wrap the sandwich in foil and bake at 350°F for 10-15 minutes. Freezing the assembled sandwich may change the texture. If you want to freeze it, I suggest freezing the roast beef and cheese separately. You can also freeze the caramelized onions. Just store them in small bags. When ready to eat, defrost everything and assemble your sandwich fresh. This way, you will enjoy the best taste and texture. Yes, you can make this sandwich ahead of time. To do this, prepare the roast beef and caramelize the onions. Store them in separate, airtight containers in the fridge. You can also spread the mustard on the bread ahead of time. When you're ready to eat, assemble the sandwich and toast it. This keeps the bread fresh and crispy. I love pairing this sandwich with a side salad or crispy fries. A fresh salad brings a nice crunch and balances the rich flavors. You could also serve it with pickles for a tangy twist. For a heartier option, potato chips add crunch and are easy to grab. Yes, you can make a vegetarian version of this sandwich. Instead of roast beef, use grilled vegetables like bell peppers and zucchini. You can also add some sautéed mushrooms for extra flavor. Swap the cheddar cheese for a plant-based cheese to keep it dairy-free. This way, you still get a tasty and hearty meal. This blog post shared how to make a delicious Roast Beef Cheddar Melt. We covered the main and additional ingredients, along with step-by-step instructions. I shared tips for perfecting flavors and toasting, as well as variations you can try. Storing and reheating options ensure you enjoy your sandwich later. With these easy steps, you can impress your friends or family. Just have fun and adapt the recipe to your taste. Enjoy your cooking journey!

Roast Beef Cheddar Melt

A delicious sandwich featuring layers of roast beef, sharp cheddar cheese, and caramelized onions on toasted sourdough bread.
Print Recipe Pin Recipe
Prep Time 10 minutes
Cook Time 20 minutes
Total Time 30 minutes
Course Main Course
Cuisine American
Servings 2
Calories 600 kcal

Ingredients
  

  • 1 lb roast beef, thinly sliced
  • 4 slices sharp cheddar cheese
  • 4 slices sourdough bread
  • 2 tablespoons Dijon mustard
  • 2 tablespoons butter, softened
  • 1 small onion, thinly sliced
  • 1 tablespoon olive oil
  • to taste salt and pepper
  • 1 tablespoon fresh chives, chopped (for garnish)

Instructions
 

  • In a skillet, heat the olive oil over medium heat. Add the thinly sliced onion and cook, stirring occasionally, until golden brown and caramelized, about 10-12 minutes. Season with salt and pepper to taste. Remove from heat and set aside.
  • Spread the Dijon mustard evenly on one side of each slice of sourdough bread. This will be the inside of the sandwich.
  • On the non-mustard side of two slices of bread, layer the roast beef followed by the caramelized onions. Place two slices of cheddar cheese on top of each sandwich and then cover with the remaining slices of bread, mustard side down.
  • In the same skillet, add butter and allow it to melt over medium heat. Carefully add the sandwiches to the skillet and cook until the bread is golden and crispy, about 4-5 minutes. Carefully flip and repeat on the other side until the cheese is melted and the bread is toasted.
  • Remove the sandwiches from the skillet, slice in half, and sprinkle with fresh chives for garnish.

Notes

Serve the Roast Beef Cheddar Melt on a wooden board or a stylish plate, and include a small bowl of pickles or a side salad for a fresh touch.
Keyword beef, cheddar, comfort food, sandwich, toasted