Smothered Blue Cheese Steaks

recipe from Ambition's Kitchen via Deals to Meals

Blue Cheese Butter:
1 cube butter, softened  
1 c. blue cheese (could use parmesan or feta if you don't like blue)
1/2 t. pepper
1/2 t. salt
2 cloves garlic, minced
2 T. balsamic vinegar
1/4 c. parmesan cheese

4-6 pieces of good quality steak (I used Ribeye and Tbone cause that's what was in my freezer)
8 oz. pkg. white mushrooms, sliced or cut into fourths 

Puree all of the butter ingredients to make the bleu cheese butter, 
until smooth. Place one steak per person (London broil or Petite
Sirloin work well) on a baking stone or in a 9x13 pan, and very 
lightly season with Montreal Steak Seasoning (or salt and pepper.)  Place in the 
oven on a low rack and broil for 6-7 minutes.  Take steaks out of oven 
and drain off any juices.  Spread bleu cheese butter ALL over steaks 
(generously).  Dice mushrooms and place around steaks.  You can 
even spread the butter on the mushrooms.  Put back in the oven and 
broil for another 7-12 minutes, depending on how well done or rare 
you like your steaks.  Serve with extra bleu cheese butter on the side
if you would like.