Un-stuffed Mushroom Burger

We have somewhat of a burger obsession around here.  As soon as it gets to be prime grilling weather, we make up new burgers often.  This recipe is a spin-off of Pioneer Woman's Brie-Stuffed Mushroom's, which by the way, could change your life.

Please don't think we're obese because all we eat is homemade cheeseburgers, pasta, and pizza.  I do make healthy, waist-conscious food almost every day....I just blog the outlandish, amazing-tasting, fat-laden food more often apparently. 

Un-Stuffed Mushroom Burger
inspired by Pioneer Woman

1 lb ground beef
4 cloves garlic, grated or minced
1/4 onion, grated or minced
1/4 c. fresh parsley, chopped
plenty of salt & pepper
2-3 Tb. butter
8 oz sliced mushrooms (or more)
salt & pepper
wedge of brie
4-bakery rolls
butter for buns

In a bowl combine beef, garlic, onion, parsley, salt & pepper.  Make four even patties and heat the grill.  While the grill is heating, melt the 2-3 Tb. butter in a skillet over medium-high heat.  Add in the mushrooms and saute them, lowering heat if necessary.  Continue cooking the mushrooms until they are soft and cooked to your liking, then season with salt & pepper.  Cook the burgers on the grill, topping with plenty of brie and letting it melt before removing from the grill.  Butter the buns and quickly toast them on the grill.  Serve the burgers on the buttered, toasted buns topped with plenty of mushrooms.