01 -
Heat oil in a large skillet over medium-high heat. Add ground beef and cook until browned, about 3-5 minutes. Drain excess fat.
02 -
Stir in diced onion and bell pepper. Cook until tender, about 3-4 minutes.
03 -
Add tomato paste, minced garlic, smoked paprika, chili powder, and cayenne pepper. Stir until fragrant, about 1 minute.
04 -
Pour in beef stock, scraping the skillet’s bottom to deglaze. Stir in ketchup, Dijon mustard, Worcestershire sauce, and brown sugar.
05 -
Reduce heat to low and simmer, stirring occasionally, until the mixture thickens and flavors blend, about 15-20 minutes.
06 -
Pile the saucy beef mixture onto toasted buns and serve immediately.