Lightly brown bacon in a skillet. Add mushrooms and garlic. Cook until mushrooms are softened, about 3 – 4 minutes. Allow to cool. Butterfly tenderloins, leaving a “hinge” on one side, a lay flat. Season inside with salt and pepper. Spread a thin layer of cream cheese on one side. Sprinkle breadcrumbs over cream cheese. Spread bacon/mushroom mixture over cream cheese.