Preheat the broiler in the oven to high

Slice the tomato and onions into thin slices

Combine the ground beef, onion powder, garlic powder, pepper, ketchup, and Worcestershire sauce in the mixing bowl

Separate the beef mixture into four sections, forming each section into a tight ball

Using the palms of your hands, press the ball into a flattened shape (so it looks like a thick hamburger!)

Place the broiler pan into the preheated oven (no, don't put the burgers on the pan...yet)

Allow the broiler pan to preheat for four minutes then remove the broiler pan from the oven

Spray the pan with cooking spray

Immediately place the four burger patties onto the broiler pan

Return the broiler pan to the oven and broil the burgers for 4 minutes

Turn the hamburgers over and broil for 4 more minutes

Remove the broiler pan from the oven

Place the cheese slices on the burgers

Place the burgers on the buns