Cut the pork tenderloins into 2" thick medallions and season both sides with salt and pepper.
Heat 1/2 Tablespoon of olive oil in a large pan (I like cast iron) over medium-high heat. Add the medallions and sear them 2 to 3 minutes per side, until golden brown. Remove the medallions to a plate and cover with foil to keep warm. Set aside.
Add the remaining 1 Tablespoon of oil and onions to the same pan. Cook, stirring occasionally, for 3-4 minutes, until onions are tender. Add the mushrooms and minced garlic and sauté, stirring occasionally, for another 2-3 minutes or until the mushrooms are softened.
Reduce the heat to low, then sprinkle with the flour and stir to combine. Add the half and half and season with the meat seasoning, salt, and pepper to taste. Add the pork medallions back to the pan; stir well, cover with a lid and simmer for about 2-3 minutes, or until the cream begins to thicken.
Sprinkle with your favorite green herbs and enjoy!