A healthier version of the classic comfort food. This version of the Oklahoma Onion Burger cuts down the amount of beef even more by using mushrooms. You won't taste the differrnce.
Using a mandoline on the lowest setting, slice the onions very thin and set aside
Chop the mushrooms in a food processor until fine
Add the meat to the food processor and pulse a few times to mix
Create balls from the meat and mushroom mixture about 3 ounces each
Heat a cast iron pan or griddle on medium high heat
Place the meat on the pan, season with salt, and quickly cover with onions and smash them down flat
Flip over when you see moisture on the onions and they are browned to your liking
Add the cheese slices and place the top bun on it. Then take the bottom bun and place on the top to steam
Cook for a few minutes until juices run clear
These burgers cook quickly so make sure to have all of your ingredients prepped and ready to go before you start cooking.