1 can condensed cream of mushroom soup (undiluted)
Preheat oven to 350F.
Instructions
In a large skillet brown the burger and drain if needed. While the burger is cooking finely chop the green pepper.
In a large bowl mix all the ingredients together except for the onions.
Layer a half a cup of onions with the meat mixture (I lined the bottom of the casserole dish).
Cover and bake for 30 minutes. Uncover and garnish the top with the rest of the onions. Bake for an additional 30 minutes or until the pasta is tender.
Serve garnished with additional cheese and onion. (Optional)