1 lb ground beef
salt
pepper
6 slices bacon
1 C mushrooms, sliced
1 C onion, diced
1 T butter
4 slices American cheese
2 hamburger buns
Mayo, mustard, ketchup, etc
Heat oven to 425 degrees F. Place the bacon on a baking sheet and bake until crispy, about 10 minutes.
Place the butter in a saute pan over medium heat. Add the mushrooms and onions and saute until caramelized, about 10 minutes. Remove from heat.
Make 4 patties out of the ground beef.
Heat a griddle to medium heat and place the patties on the hot surface. Season with salt and pepper. Cook until edges are cooked. Flip and cook another few minutes, until the burgers are done throughout.
To assemble the burger, place the bottom half of bun on a plate. Add mayo, mustard, or other condiments. Place a burger, top with cheese, then another burger and cheese. Top with bacon and sauteed veggies. Place the top of the bun on the burger.
Repeat with remaining ingredients.
Serve hot!