Stuffed Pork Tenderloin

Stages of cooking

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7

1. Preheat the oven to 350 degrees F (175 degrees C).
   
2. Heat 1 tablespoon olive oil in a skillet over medium heat; cook and stir mushrooms, shallot, thyme, garlic powder, sage, black pepper, and salt in the hot oil until liquid has evaporated and mushrooms and shallots are softened, 5 to 10 minutes. Dotdash Meredith Food Studios
   
3. Add parsley; cook and stir for 1 minute. Mix in spinach; cook and stir until spinach is wilted, about 5 minutes. Stir in mustard. Remove from heat. Dotdash Meredith Food Studios
   
4. Place pork tenderloin on a work surface; lay prosciutto atop tenderloin. Spread mushroom-spinach mixture over prosciutto, leaving a 1/2-inch border on all sides. Dotdash Meredith Food Studios Dotdash Meredith Food Studios
   
5. Tightly roll tenderloin around filling and tie together with kitchen string to keep closed. Dotdash Meredith Food Studios Dotdash Meredith Food Studios
   
6. Heat remaining 2 tablespoons olive oil in a large skillet over medium heat; place rolled tenderloin in the hot oil. Sear until all sides are golden brown, about 10 minutes. Transfer seared tenderloin to a 9x13-inch casserole dish. Dotdash Meredith Food Studios
   
7. Bake in the preheated oven until pork is slightly pink in the center, 25 to 30 minutes. An instant-read thermometer inserted into the center should read at least 145 degrees F (63 degrees C).