Remove meat from oven; cover loosely with foil. Let stand 15 min. (Temperature of meat will continue to rise 5°F to 10°F as it stands.) Meanwhile, cook mushrooms and shallots in large nonstick skillet on medium-high heat 8 to 10 min. or until mushrooms are golden brown, stirring occasionally. Deglaze skillet with wine; cook 3 to 4 min. or until most of the wine is evaporated. Add beef broth, gravy and remaining pepper; stir. Cook and stir 2 to 3 to min. or until heated through.