Cook pasta according to package directions, then rinse with cold water and drain.
Heat olive oil in a large saue pan over medium heat.
Add onions and garlic and cook until soft and fragrant.
Add ground beef and break it up as it cooks, until no longer pink.
Stir in chili, onion powder, oregano and cayenne, then add salt and pepper, to taste.
Add beef broth and tomato sauce and stir to mix well, then stir in brown sugar.
Add cooked pasta and mix well, then stir in cheese until just melted.
If needed, add more broth or water until sauce reaches desired consistency.
Garnish with chives before serving. Enjoy!