Beef Stroganoff Casserole

This is very quick to put together and a perfect dish for one of those busy nights.  You can assemble it 24 hours before serving, if you don't have time right before baking. Just assemble everything except for the cheese and place in the fridge.  When ready to bake, sprinkle with the cheese and pop it in the oven.
The flavors are absolutely fantastic in this dish! Everything goes so well together.  Delicious!  Enjoy!
-1 lb extra lean ground beef
-1 small onion, finely chopped
-8 oz baby portabella mushrooms, sliced
-1 tsp salt
-1 tsp pepper
-1 tsp paprika
-1 cup sour cream
-1 (12 oz) package refrigerated buttery crescent rolls
-1 cup Cheddar cheese, shredded
Preheat oven to 375 F.
Brown beef along with onions and mushrooms in large skillet.  Season with the salt, pepper and paprika.  Cook until all the liquid is gone.  Stir in the sour cream and mix well. Remove skillet from stove.
Unroll the crescent dough and press into the bottom of an ungreased 9x13 casserole dish.  Pour beef mixture right on top.  Sprinkle with the cheese and bake in the preheated oven for 30 minutes.
Remove from oven and let it sit for 5 minutes.  Enjoy with a side of veggies!