1.In A Large Skillet, Warm Oil Over Medium Heat And Saute Sausage And Onion For 10 Minutes. Meanwhile, Bring A Large Pot Of Water To A Boil. 2.In A Small Bowl, Whisk Together 2 Seasoning Packets From Ramen Noodles, Flour And Water Until Smooth; Add This Sauce And Peas To Skillet. 3.Bring Mixture To A Boil, Cover And Cook For 5 Minutes Or Until Heated Through. 4.Add Noodles To Large Pot Of Boiling Water And Cook For 3 Minutes; Drain. 5.Remove Sausage Mixture From Heat And Stir In Sour Cream; Do Not Boil. Mix In Noodles And Serve.