Preheat the oven to 350 degrees F (175 degrees C).

Thoroughly mix ground beef chuck, Cheddar cheese, mayonnaise, and dry onion soup mix in a medium bowl.

Spread even amounts of ground beef onto the bottom half of each roll. Place top halves on, forming little sandwiches. Place on a baking sheet or baking pan. Cover the pan tightly with aluminum foil.

Bake in the preheated oven until meat is cooked through, 30 to 35 minutes.