Combine the ground beef, Worcestershire sauce, salt and pepper. Roll into balls and set aside.

Add the oil to a cast iron skillet on medium high heat.

Once warm, add in the onions and mushrooms and cook for 5 minutes.

Add in the ground beef balls. Flatten the sliders with a spatula.

Cook 5 minutes per side.

In the last couple of minutes of cooking, place the buns in the oven and bake for 2 minutes letting the cheese melt.

Assemble the sliders by topping the cheese with the burger.

Finish by topping with the onions, mushrooms and 2 hamburger dills.

Serve and enjoy.