Chop the onions
Chop the bell pepper
Heat the oil in the skillet on medium heat
Add the onions, bell pepper, and minced garlic to the preheated skillet
Saute until the onion is soft
Add ground beef to the skillet
Cook until the beef is browned
Add the chili beans, tomatoes, tomato paste, and chili powder to skillet
Bring to a boil
Reduce heat to low
Simmer, uncovered, for 40 minutes
Serve