Crock Pot Hungarian Goulash

2 lbs round steak, cut in 1/2 inch cubes
1 c chopped onion
1 clove garlic, minced
2 T flour
1 t salt
1/2 t pepper
1 1/2 t paprika
1/4 t dried thyme, crushed
1 bay leaf
1 14 1/2 oz can tomatoes
1 c sour cream

Put steak cubes, onion, garlic in Crock pot. Stir in flour and mix to coat steak cutes. Add all remaining ingredients except sour cream. Stir well. Cover and cook on low 8 to 10 hours. Add sour cream 30 minutes before serving and stir in thoroughly. (High: 4 to 5 hours, stirring occasionally). Serve over hot buttered noodles.