In A Large Resealable Plastic Bag, Combine The Flour, Salt And Pepper. Add Beef, A Few Pieces At A Time, And Shake To Coat. In A Large Skillet, Brown Meat On Both Sides In 4 Teaspoons Oil. Place In A 5-Qt. Slow Cooker. In The Same Skillet, Saute Onion In Remaining Oil Until Lightly Browned; Place Over Beef. Combine The Soup, Oregano And Thyme; Pour Over Onion. Cover And Cook On Low For 7-8 Hours Or Until Meat Is Tender.