01 -
In a large skillet over medium-high heat, brown the ground beef thoroughly, breaking up large clumps. Drain excess fat to prevent greasiness.
02 -
In the same skillet, add diced onion, red bell pepper, and minced garlic. Cook until softened and translucent, about 3 to 5 minutes, to develop sweetness and deepen flavor.
03 -
Transfer browned beef and sautéed aromatics to the slow cooker. Add kidney beans, diced tomatoes with juices, tomato sauce, beef bouillon cubes, chili powder, smoked paprika, cumin, oregano, salt, black pepper, cayenne pepper if using, beef broth, and lime juice. Stir thoroughly to combine.
04 -
Cook on low for 6 to 8 hours or on high for 3 to 4 hours to allow flavors to meld and beef to tenderize.
05 -
Taste and adjust salt, heat, and acidity as needed. Serve garnished with your choice of toppings, such as shredded cheese, sour cream, chopped cilantro, or sliced jalapeños.