Beef Wellington is a dish that can be served as an appetizer or main course. There are many different side dishes that can be served with it, and what you choose to serve will depend on what kind of meal you want the dish to become. Here are some ideas for what to serve with Beef Wellington:

• Mashed Potatoes: This classic side dish pairs well with the rich flavors of Beef Wellington.

• Roasted Vegetables: Roasted Brussels sprouts, root vegetables, beets, parsnips, and carrots are all great options to add some color and nutrition to your meal.

• Salad: A simple salad with arugula, spinach, lettuce, red peppers, cucumbers, and tomatoes can be a refreshing complement to the rich flavors of Beef Wellington.

• Ratatouille: This vegetable stew made with eggplant, zucchini, bell peppers, and tomatoes can be a great vegetarian option to serve alongside Beef Wellington.

• Green Beans: Green beans almondine or asparagus with hollandaise sauce can add some crunch and freshness to your meal.

• Potatoes Dauphinoise: This French dish made with thinly sliced potatoes and cream can be a decadent and delicious side dish.

• Risotto: Mushroom risotto can be a great option to complement the earthy flavors of Beef Wellington.

• Wine: A glass of red wine, such as burgundy or Bordeaux, can be a great pairing with Beef Wellington.

These are just a few ideas for what to serve with Beef Wellington. Ultimately, the best side dishes will depend on your personal preferences and the occasion.