Onion-Smothered Pork Tenderloin

This is one of Tod's most favorites!  Definitely a low fat, meat lover's dream.  Cook's dream, it's so easy!

• 2 (3/4-pound) pork tenderloins
• Cooking spray
• 2 teaspoons butter or olive oil as needed
• 2 cups sliced onion or more
• 1 teaspoon dried thyme (or handful of fresh)
• 1/2 teaspoon salt
• 1/2 teaspoon pepper
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• 1.  Preheat oven to 400 degrees.
  
  2. Trim fat from pork; cut a lengthwise slit down center of each tenderloin, cutting about two-thirds of the way through meat. Place on a broiler pan coated with cooking spray.
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  3. Melt butter in a large nonstick skillet over medium-high heat. Add onion, and saute 5 to 6 minutes or until tender. Add thyme, salt, and pepper. Spread onion mixture evenly over tenderloins. Bake at 400° for 45 minutes or until a meat thermometer registers 160° (slightly pink).
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  Slice with onions...crosswise and serve.  I often serve with garlic mashed red skin potatoes and a veggie.  This is based on a recipe found in my Cooking Light Cookbook.