Try this homemade Mary's Fillet recipe the whole family will love. Made with filet of beef, garlic butter, fresh button mushrooms and parsley. Easy step…
This Mary's Fillet relies on simple, everyday ingredients such as filet of beef (whole piece), garlic butter, fresh button mushrooms and parsley, finely chopped. It comes together quickly and makes 4 servings, at about 1004 kcal each. The step-by-step instructions below are written to be easy to follow, even on a busy day.
It's versatile enough for an easy weeknight dinner yet satisfying enough for guests at the weekend. Serve it with your favorite sides, and keep any leftovers for a quick meal the next day.
Updated Jun 30, 2026