Chop chicken thighs into bite sized pieces, season with salt and pepper. Heat large pot and add chicken to brown. I use a nonstick without oil, but add some oil if it is not a nonstick pan. While browning chop mushrooms, bell pepper, chilis, and garlic. Add to pot and cook for about five minutes. Sprinkle flour over mixture and stir. Cook for about one minute. Slowly stir in chicken broth mixing with the flour. Add beans and cumin. bring to boil, then reduce and fast simmer for 15 minutes. Serve over hot rice.