Wellington is a classic British dish typically made with beef or lamb encased in puff pastry. This innovative recipe swaps the meat for a delicious combination of mushrooms and Stilton cheese. The mushrooms are sautéed with onions, garlic, and herbs, then mixed with crumbled Stilton and wrapped in puff pastry. Bake until golden and serve with a side of roasted vegetables for a vegetarian twist on a British favorite.