How to Make It
Preheat oven to 350°F. Combine flour, salt, and pepper in a shallow dish; toss beef with flour mixture.
Cook beef, in batches, in hot oil in a large Dutch oven over medium-high, stirring occasionally, 4 minutes or until browned. Remove beef from Dutch oven.
Add onion, celery, and jalapeño peppers to Dutch oven; sauté 5 minutes or until tender. Stir in any remaining flour mixture and tomato paste; cook 2 minutes. Add broth, next 3 ingredients, and beef, stirring to loosen browned bits from bottom of Dutch oven. Bring to a light boil.
Bake, covered, at 350° for 2 1/2 hours or until meat is fork-tender. Skim fat from juices in Dutch oven. Serve with tortillas and desired toppings.