Mozart Mozzerella

I think I got this from a Yahoo Group I used to belong to, but I've had it for years! I have added a can of peas or corn to this, but usually I serve it with broccoli spears.

Mozart Mozzerella (stuffed rolls)
2 lb. hamburger
1 onion, chopped
1 (15 oz.) can tomato sauce
1 sm. can mushrooms
8 oz. carton sour cream
1 1/2 c. shredded Mozzarella cheese
1 1/2 c. shredded Cheddar cheese
1 (8 oz.) tube crescent rolls, separated
Oregano
Basil

Brown hamburger and onion. Drain. Mix with tomato sauce and mushrooms. Spread in bottom of 9 x 13 inch pan or casserole. Spread cheeses over top.Lay rolls out and spread with sour cream. Sprinkle with oregano and basil. Roll and place on top of cheeses. Bake at 350 degrees for 35 minutes or until rolls are brown and done.