1-1/2 pounds chuck steak, cut into strips
1 teaspoon salt
1/4 teaspoon pepper
1 large onion, sliced
3 tablespoons soy sauce
4 ounces mushrooms, drained
1 can tomatoes (16 ounces)

Put meat, flour, salt and pepper in crockpot and stir well to cook steak. Add remaining ingredients. Cover and cook on low for 8 hours, or high for four hours. Serve on noodles or potatoes.