Quick & Simple Roast Beef Sandwiches are a game changer when it comes to dinnertime. Deli roast beef, peppers, onions and pepper jack cheese piled on toasted hoagie rolls. So simple and so good!

After 12 straight days of sugar, I thought maybe I better share something more on the savory side. If you love a good Philly Cheesesteak sandwich, but don’t have the time or the steak on hand, then these Quick & Simple Roast Beef Sandwiches are going to become your new BFF.

These sandwiches are so simple to make and taste phenomenal. They start with deli roast beef, sautéd peppers (red or green, or both) and onions, topped with melted pepper jack cheese and piled onto a toasted hoagie bun.

With the craziness of the holidays, these sandwiches are the perfect solution for a night you need something quick and delicious.

You really can’t mess these up. They are so easy peasy and I promise you’re going to thank me later for sharing.

Can I use any kind of bell peppers?

Yes! I’ve made these sandwiches using only green bell peppers, using only using both red and green (so festive for the holidays, right?!) . . . they are delicious any way you make them. Feel free to use yellow or orange peppers as well. I do love them most when I use at least some green pepper, just because I think green peppers have a distinct/different taste than red, orange or yellow pepper, and I love the flavor of the green pepper in these sandwiches.

What size rolls should I use?

Use whatever size hoagie roll you’d like. For these pictures, I used larger size rolls that I cut in half to serve. You could even use more like a dinner roll and make these more like a slider.

What should I serve with these sandwiches?

I love to serve these sandwiches with potato chips and then either a green salad, fresh fruit, or veggies & dip, etc. Just your basic, simple sides. Pretty much anything goes with these sandwiches.

If you need other yummy sandwich ideas you should try these Slow Cooker Flank Steak Sandwiches, Instant Pot French Dip Sandwiches or these Slow Cooker Jalapeno Chicken Sandwiches. These are all some of of our favorites!