Roast Beef and Egg Sandwich

With a buttery brioche bun, thin slices of roast beef, egg, creamy cheese, baby arugula and crispy fried onions, this roast beef and egg sandwich is such a satisfying meal. Not only is it super delicious, it can be on the table and ready to be devoured in about 15 minutes.

No doubt, I can eat a sandwich every single day and not tire of them. You too? This recipe was inspired by a roast beef and egg sandwich that I had at a fast food chain. Don’t you just love when you can make a restaurant favourite at home and it turns out even better than the original?

Though this sandwich has more of a breakfast vibe (because of the egg), I could (and have) easily enjoy this one for any meal of the day. And, of course, it pretty much goes without saying that it pairs awesome with a big cup of coffee. Talk about delicious!

Ingredients

• Hamburger bun: I adore brioche hamburger buns, but feel free to use your favourite variety.
• Butter or margarine: Either works, use what you prefer or have on hand.
• Cheese: I used Boursin, which is a soft and creamy cheese (not sponsored). The flavour I chose to pair with this sandwich was a truffle salt flavour, but a herb variety would work equally as well.
• Egg: I used one large whole egg. Use just egg whites if you like.
• Green onion: Adds a pop of colour and flavour. Don’t have green onion? Try chives for a similar flavour.
• Baby arugula: Just like the green onion, baby arugula adds some colour to the sandwich. Plus, it’s fresh, peppery and pairs deliciously with the roast beef.
• Roast beef: Just grab a package of roast beef from your grocery store’s deli or ask the deli counter to slice some from you. Just like this cold roast beef sandwich, I prefer the roast beef thinly sliced or shaved. I find it’s easier to enjoy that way.
• Crispy fried onions: I used store-bought crispy fried onions (the ones in the bag or container and typically found in the grocery store alongside croutons). They are so darn convenient and add such a lovely crunch and flavour to the breakfast sandwich.

How To Make This Roast Beef and Egg Sandwich

Here is an overview of how to make this roast beef and egg sandwich (full details are in the recipe card below):

1. Toast the hamburger bun to how you like it. Then, spread the butter over the inside of the two halves and spread the cheese over just the bottom half.
2. In a bowl, whisk together the egg and green onion.
3. Melt some butter in a frying pan, then pour in the egg and cook it.
4. Start to assemble your yummy breakfast sandwich by placing a good handful of baby arugula on top of the cheese. Fold over the cooked egg (so it will fit the bun) and place it on top of the arugula.
5. Top the egg with sliced roast beef and crispy fried onions.
6. Place the top bun over top to form your delicious breakfast sandwich, then devour!

What To Serve With It

You can certainly enjoy this roast beef and egg sandwich on its own (it’s quite hearty), or with a side dish. Depending on when you are having it (breakfast, lunch or dinner), it pairs great with any of these side dishes:

• Baked beans
• Fruit salad
• Hash browns
• Skillet potatoes
• Garden salad

Tips and Variations

• The bread: As mentioned, I love to use a brioche hamburger bun for this sandwich. If you want to mix things up, use your favourite sandwich bread, English muffin or bagel.
• Toasting the hamburger bun: I prefer a toasted bun. It’s not completely necessary, but I do feel like it adds a nice touch to the sandwich and gives the bun a little more texture and structure (especially if you are using a brioche hamburger bun, which tends to be a little more delicate and soft). If you do, however, want to skip toasting the bun, that’s okay.
• The cheese: I used a soft, creamy cheese for this sandwich that was truffle salt flavoured. You can use another variety if you prefer. Cheddar or Havarti are yummy options. Or, if you want to omit the cheese but still want that truffle flavour, try my truffle mayo.
• The egg: Cook the egg another way if you prefer. I whisked the egg and pan fried it somewhat like an omelette. A simple fried egg or scrambled egg are other great options.
• Topping swaps: Instead of crispy fried onions, try using caramelized onions.

More Easy Breakfast Sandwich Recipes

• Scrambled Egg Sandwich With Cheese
• Bacon and Egg Hash Brown Breakfast Sandwich
• Pulled Pork Breakfast Sandwich

If you try this roast beef and egg sandwich, be sure to leave a comment below!