Sprinkle the flour in. Throw in the onions, water to barely cover the meat, chile powder, cumin, Mexican oregano and garlic. Season to taste with salt and pepper. Stir the pot until well-incorporated. Bring the liquids to a fast boil, cover, cut the heat to a slow simmer and braise for 1 - 1 1/2 hours. Stir the pot - on occasion. Serve in bowls with cheese grated overtop, or use as burrito filling.