Cook in a frying pan wit hot oil 1 finely chopped onion until it is soft, add the meat of 2 sausages (squeeze out the meat). When the meat is brown add 250g chesnut mushrooms. When the mushrooms are done add 3 chopped sundried tomatoes, 100ml creme fraiche, 2 tablespoon tomato puree and 1 tablespoon chopped basil. Just warm it a little more. Cut open 4 bake off croissants and fill it with the mushroom mixture. Scatter some grated cheese over it and some finely chopped parsley and place the bakin tin with the croissants in a preheated oven at 180C for about 10 minutes. Enjoy!