Bavette Steak in a Demi Glace Sauce with Caramelized Onion Mashed Potatoes & Roasted Green Beans

Adjust rack to top position and preheat oven to 425 degrees. Wash and dry produce.

Peel and dice potatoes into ½-inch pieces. (TIP: For speedier spud prep, skip the peeling.) Trim green beans if necessary. Halve, peel, and thinly slice onion. Peel and mince garlic.