Chili Ground Beef

1 1/2 pounds ground beef
1 cup chopped onion
1 can (1 pound) tomatoes
1/2 cup chopped green pepper
2 tsp. salt
2 tsp. chili powder
1 tsp. paprika
4 cups cooked spaghetti
1/4 pound cheddar cheese, grated

Cook ground beef slowly until crumbly but not hard. Add onions, tomatoes, green peppers and seasonings. Cover and simmer 45 minutes. Alternate layers of cooked spaghetti and ground beef mixture in a large greased casserole so the top layer is meat. Sprinkle grated cheese over mixture and bake at 350 degrees for 20 to 30 minutes until cheese is melted and lightly browned.