Method: Soften a large onion and a clove or two of finely-chopped garlic in a large pan. Then add some florets of broccoli and cover until steamed. Next, add the chopped bacon (which will cook in the steam so there's no need for pre-frying), 2 small (or 1 large) pots of créme fraiche and lots of sliced chestnut mushrooms.
While this lot is cooking, roll out some puff pastry until it's a good few inches larger than the top of the dish you're going to cook the pie in, and place it over the top. Poke a couple of holes in the top and bake on high heat for 10 minutes, then lower the temperature for a final 8 minutes.
Et voila! Un pâté en croûte fait maison délicieux!