In a large pot or Dutch oven, layer the beef brisket or chuck roast chunks on the bottom.
Top the meat with chopped onion, minced garlic, chopped bell pepper, chopped tomato, and chopped cilantro.
Sprinkle ground cumin, dried oregano, salt, and pepper over the layers of meat and vegetables.
Pour beef broth over the layers until the meat is fully submerged.
Cover the pot with a lid and bring the mixture to a boil over medium-high heat.
Once boiling, reduce the heat to low and let the baho simmer, covered, for about 2-3 hours, or until the meat is tender and falls apart easily.
While the meat is cooking, prepare the banana layer.
Place the sliced green bananas on top of the cooked meat in the pot.
Cover the pot again and let the bananas steam with the meat for an additional 30 minutes, or until softened.
In a bowl, combine shredded green cabbage, thinly sliced red onion, lime juice, and salt. Toss to combine.
Serve the baho hot, spooning the meat, bananas, and vegetables onto individual plates.
Serve the cabbage salad on the side as a refreshing accompaniment to the flavors of the baho.