Cook spaghetti. Drain, set aside.
Cook meat and cut as small as you desire. Mix remaining ingredients except for breadcrumbs and cheese in a large bowl. Fold in spaghetti, blending well. Pour into lightly greased casserole pan. Bake at 350 degrees for 20 to 25 minutes until heated through. Remove from oven and spread the cheese and breadcrumbs over the top and put it back in the oven for 5 minutes or until the cheese is melted. Ready to serve.