Heat a large, heavy skillet to high heat. Spray the pan with a spritz of olive oil and let that heat for a minute. Add the mushrooms along with half of the salt, and the pepper. Cook for three minutes. Add the peppers and diced onions and cook for an additional 5 minutes, stirring often until the veggies are fragrant and tender.

Push the veggies to one side of the pan and add your ground beef and remaining salt. Using a meat masher or a wooden spoon, break up the meat until it’s browned and cooked through. Add the Worcester sauce and garlic and continue to cook for about two minutes. Add any additional salt and pepper to taste.

Turn off the heat and top with grated cheese. Cover until the cheese is melty. Enjoy on toasted buns, on a baked potato, over rice, or your favorite low-carb base like cauliflower rice or spaghetti squash!