Cook noodles as directed on package, drain and cut in half. In saucepan cook garlic and thyme in butter. Blend in flour; cook stirring constantly until thick. Season to taste with salt and pepper. In microwaveable dish layer one third noodles, sauce, cheese, ham and asparagus or spinach. Repeat layers 2 more times. In microwave cover and cook on high 9-10 minutes. Rotate dish twice. 4 servings