Cook noodles to desired doneness as directed on package. Drain; keep warm.
Heat oven to 350. Spray 1 1/2 quart casserole with nonstick cooking spray. In medium bowl, combine cooked noodles and all remaining ingredients except pretzels. Spoon mixture into spray-coated casserole; top with pretzels.
Bake at 350 for 25 to 30 minutes or until thoroughly heated. 4 1 1/4 cup servings.