Arrange split rolls on baking sheet; evenly spread with Hellmann's® or Best Foods® Real Mayonnaise; set aside.
Sprinkle Knorr® Beef flavor Bouillon evenly over steak. Heat oil in large nonstick skillet over high heat. Add steak, in batches, and cook 40 seconds on each side or until desired doneness. (Be sure not to overcook so steak stays juicy.) Keep warm.
Broil rolls just until warmed through, about 1 minute.
Top rolls with steak. Close sandwiches; wrap tightly in waxed paper or aluminum foil and let stand 3 minutes.
Steak can be enjoyed in countless ways. Follow these tips to cook tender, juicy steak you can’t resist.