In a non-stick skillet, brown meat & onion in 2 Tbs. oil . Put broth & tomato sauce in bottom of crock pot, Combine flour, paprika, garlic powder, sugar, salt, and pepper. Add a small amount of water & mix until smooth & add to crock pot. Stir to mix & add meat mixture. Cover and cook on 5 to 6 hours on high or 8 to 10 hours on low (or until meat is tender). Serve over noodles.