Cut bird into serving pieces and season with salt and pepper and roll in flour. Place pieces in a hot skillet with 5 teaspoons cooking oil and brown on all sides. Chop and mix together 1 pepper, 4 small onions and 1 clove garlic (chop garlic extra fine) and add 1 cup of canned tomatoes. Mix and stir everything together in the skillet; cover and simmer 40 minutes. Finally, add 1 cup sliced mushrooms. Simmer another 15 minutes.