Easy Ribeye Steak Sandwich with Grilled Onions

two ribeye steak sandwiches on a wooden cutting board

Easy Ribeye Steak Sandwich with Grilled Onions

This grilled ribeye steak sandwich recipe is loaded with grilled onions, two kinds of melted cheese, and my famous Mac’s awesome sauce on a ciabatta bun for a tasty, tender, easy-to-make sandwich!

Prep Time5

Cook Time10

Course: Main Course

Cuisine: American

Keyword: ribeye sandwich, ribeye steak sandwich

Servings: Sandwich

Ingredients

Ribeye Sandwich

1 8 oz ribeye steak
1 small yellow onion
2 tablespoons butter divided
2 slices mozzarella cheese
2 slices provolone cheese
1 handful arugula
2 pieces ciabatta bread
1/4 cup Mac's Awesome Sauce

Instructions

Cook the Steak

Season the meat generously with salt. When the pan is hot but not smoking, place the Ribeye in the pan and cook for 3-4 min and then turn and cook another 3-4 min for medium, or until desired doneness.
In the last 30 seconds of cooking add 1 tablespoon of butter and baste. Let rest for 10 minutes and then slice against the grain of the meat.

Cook the Onions

Add 1 tablespoon of butter to a hot skillet with the onions and cook down for about 5-7 minutes. Set aside.

Toast the Bread

Preheat the oven to 350 degrees. Cut the ciabatta in half.
Add the cheese to one slice and place in the oven until the cheese is melted. Feel free to add the other piece of bread to toast also.

Assemble

Add a big scoop of Mac’s Awesome Sauce one slice of bread then build with the steak, arugula, and onions. Enjoy!

Notes

Expert Tips

Cooking Methods: I made this over the stovetop on a skillet, but you could also grill your steak on a gas or charcoal grill or place it in the oven to broil.

Temperature: I recommend using an instant-read meat thermometer to cook your steak to the desired temperature.

Medium Rare: 130 degrees F

Medium: 140 degrees F

Medium-Well: 150 degrees F

Well Done: 160 degrees F

Sauces: You can also serve this with a simple garlic aioli by adding minced garlic or garlic powder to mayo and mixing until combined. Or use steak sauce, Worcestershire sauce, or horseradish if you prefer something with more kick.

How to Pick the Best Steak: I recommend ribeye for this steak sandwich because it’s really tender. You can also use NY strip, Tri-Tip, or another cut, but keep in mind that some cuts are tougher than others (flank steak and skirt steak are tougher). I recommend noting the USDA grade of the beef you choose. Prime and Choice will be your best options.

Serving Tips

Toppings: In addition to the grilled onions, you can add other toppings as well, such as sauteed mushrooms, tomato, lettuce, banana peppers, and more. Whatever suits your flavor preferences.

Mac’s Awesome Sauce: You can make the awesome sauce ahead of time and store it in a small bowl with a lid in the refrigerator until ready to serve. It works well with so many different dishes and keeps well if stored properly.

Storage Tips

Store leftover steak in an airtight container for up to 3 days. Reheat over the stovetop, microwave, or oven.

Store sandwich ingredients separately, unassembled, and assemble according to the instructions above when ready to eat.

Nutrition