Snip dried beef into small pieces;set aside. cook noodles according to package directions until barely tender. In large bowl, toss with oil; set aside. In saucepan, meot butter over medium heat. Blend in flour until smooth. Graduall y stir in evaporated milk. cook until smooth and thick.
Pour white sauce over noodles; toss to mix. Fold in snipped beef, vegetables a nd most of grated cheese, reserving a small amount to sprinkle over top; stir w ell. Pour mixture into well-greased Crock-Pot. Sprinkle lightly with reserved cheese. Cover and cook on Low for 6 to 10 hours.
Serves 4 to 6