Heat a large pan on low-medium heat. Add cooking oil and then saute celery, pepper, onion and garlic with the salt for 2-3 mins, stirring occasionally.
Increase heat to medium and add ground beef. Cook until beef is no longer pink, breaking up the beef and stirring frequently. Strain the meat (I like the fine mesh strainer that comes with this set) or use a baster to remove excess liquid when done.