- Crumble ground beef into a large stock pot over medium-high heat. Add onions, and cook, stirring, until beef is evenly browned. Drain grease, if necessary.
- Pour in the spaghetti sauce, water, sugar, tomatoes, mushrooms, pepperoni, bouillon, chili powder and kidney beans. Bring to a boil. Reduce heat, and simmer uncovered for 30 minutes, stirring occasionally, to blend flavors.
Source: http://allrecipes.com/recipe/italian-style-chili/