1 lb. hamburger
1/4 c. chopped onion
1 tsp. crushed oregano
1 tsp. chili powder
Fresh sliced mushrooms, if desired
2 cans tomato soup
1/2 c. water
2 tbsp. vinegar
1/4 tsp. garlic powder

Brown meat and onions, add oregano, chili, garlic, soup, water and vinegar. Simmer 45 to 60 minutes, adding mushrooms the last 30. Pour over cooked spaghetti.