Place oats in blender container or food processor bowl; cover. Blend or process about 1 minute, stopping occasionally to stir. In large saucepan, fry bacon until crisp; set aside. Pour off all but 2 tablespoons drippings. Saute celery in drippings; blend in oat flour. Gradually add water and milk; continue cooking over medium heat, stirring constantly until thickened. Reduce heat; add reserved bacon, corn and mustard. Continue cooking over low heat about 5 minutes or until heated through. Remove from heat; add cheese, mixing until well blended. ABOUT SIX 1 CUP SERVINGS NUTRITIONAL ANALYSIS per serving: * calories 287 * carbohydrates 13 g * protein 16 g * fat 19 g * calcium 383 mg * sodium 490 mg * cholesterol 60 mg * dietary fiber 3 g