Stuffed Mushrooms

Why I Love This Recipe
One of my best friends always makes this and its great!
Ingredients You'll Need
1 packgage of mushrooms (small portabello)
1/2 white or yellow onion finely chopped
3/4th can of campbells tomato soup
1 stick of butter
1 cup of italian style bread crumbs
grated parm cheese
Directions
wash mushrooms
remove and save stems
saute chopped mushroom stems and chopped onion with whole stick of butter
remove from heat and add remainder of ingredients until they form a moist paste
stuff mushroom caps and cook at 350 for 20 mins