Indulge Your Taste Buds With The Roast Beef and Caramelized Onion Sub
Hey there, sandwich lovers! Today, we’re turning up the flavor dial with a mouthwatering creation that’s sure to satisfy your cravings – The Roast Beef and Caramelized Onion Sub.
Picture this: tender slices of perfectly seasoned roast beef, piled high on a fresh sub roll and topped with a generous heap of sweet and savory caramelized onions. The aroma alone is enough to make your mouth water, and the taste? Well, let’s just say it’s out of this world.

But what sets The Roast Beef and Caramelized Onion Sub apart is the combination of flavors and textures. The richness of the beef is perfectly complemented by the sweetness of the onions, creating a harmonious balance that’s downright irresistible.
Whether you’re enjoying it as a hearty lunch on a busy weekday or serving it up at your next gathering with friends, this sub is guaranteed to be a hit. So, without further ado, let’s dive into the recipe and discover how to make this delicious creation at home. Trust us, once you try it, you’ll be hooked!

The Roast Beef and Caramelized Onion Sub
Ingredients
- 4 sub rolls or hoagie buns
- 1 lb thinly sliced roast beef
- 2 large onions thinly sliced
- 2 tablespoons olive oil
- 1 tablespoon butter
- Salt and pepper to taste
- Optional toppings: sliced cheese lettuce, tomato, mayonnaise, mustard
Instructions
- Caramelize the Onions: Heat olive oil and butter in a large skillet over medium-low heat. Add the thinly sliced onions to the skillet and cook, stirring occasionally, for about 30-40 minutes, or until the onions are soft, golden brown, and caramelized. Season with salt and pepper to taste.
- Prepare the Sub Rolls: Slice the sub rolls or hoagie buns in half lengthwise, leaving one side intact to create a hinge. If desired, lightly toast the rolls in a toaster oven or under the broiler until golden brown.
- Assemble the Subs: Layer the thinly sliced roast beef and caramelized onions on the bottom half of each sub roll. Add any desired toppings such as sliced cheese, lettuce, tomato, mayonnaise, or mustard.
- Close the Subs: Close the subs by folding the top half of each roll over the fillings.
- Serve: Serve the Roast Beef and Caramelized Onion Subs immediately, or wrap them in parchment paper or foil for a portable meal.