Pork Tenderloin filled with Spanish Cheeses & Piquillos

1. Heat 1 tbsp. oil in a skillet over med. heat. Add garlic; sauté until tender, 1 min. Stir in spinach; sauté until wilted, 2 min. Set aside.

2. Whisk remaining 3 tbsp. oil in a bowl with sherry vinegar. Combine green onions, thyme, and allspice in another bowl.

3. Lay butterflied tenderloins lengthwise side by side, slightly overlapping with widest parts at opposite ends on a flat surface. Brush half of the sherry vinegar mixture over meat; rub onion-thyme mixture on top.

4. Starting at longest side, spread Manchego cheese lengthwise over one-third of pork; sprinkle with paprika; roll meat tightly, just enough to cover cheese and paprika. Cover second third of meat with Idiazabal cheese and reserved spinach; continue to roll tightly to cover cheese. Over last third, spread piquillo peppers and sprinkle with steak sauce. Finish the roll and tie with butcher's string. Place pork in a shallow roasting pan; brush outside with remaining sherry vinegar mixture.

5. Preheat oven to 400°F. Roast pork for 15 min.; reduce temperature to 300°F and roast 25 min. longer, or to an internal temperature of 150°F. Cool; cut in 1-in. slices.