Preheat the oven to 350 degrees then coat a baking sheet with cooking spray and set it aside.
Mix all burger patty ingredients in a large bowl until completely combined.
Divide the mixture into 6 equal portions, roll each portion into a ball then place on the prepared baking sheet. Press the balls flat and make a small indentation in the center of each ball to help keep them flat during cooking.
Place the baking sheet on the center rack of the oven and bake the patties for 25 minutes.
Place a cheese slice on each patty then put back in the oven for 3 more minutes to melt the cheese.
Allow the patties to rest at room temperature for 5 minutes before placing them on the buns. Garnish your burgers with any of your favorite toppings and enjoy.
One Last Thing
Make a small indentation in the middle of the burger with the back of a spoon. This will keep your burgers from doming up on you while they cook.