Brown ground beef with diced onion and bell pepper in a large skillet over medium-high heat for 6 minutes, draining excess fat.
Stir in chorizo seasoning, then add drained beans and canned tomatoes with their juices.
Simmer everything for 8 minutes, stirring occasionally, until flavors blend.
Warm tortillas in a dry skillet or over a flame for 30 seconds per side.
Serve beef mixture spooned into warm tortillas.