A mirliton is a peculiar looking squash that is commonly known as a Chayote or Vegetable Pear outside of Louisiana. Once it's all cooked, the skin will be very soft-it's fine to eat, in fact, it's delicious!
To prepare the mirlitons, add them to about 10 cups of boiling water and boil until soft-for about 30 minutes. Check them by probing with a tooth pick. If they are soft and offer little or no resistance, they are done. If they are still a little tough, continue to boil and check every 5 to 10 minutes. Make sure to let them cool before handling-it will be much more pleasant. Once cooled, slice the mirliton in half lengthwise at the widest part. Scoop out the seed and the white part around it, then carefully spoon or scrape out the fruit into a bowl, leaving about 1/4 inch of the shell. The soft skin is easy to pierce or tear-but even if it gets torn, it will still be good for stuffing!
If you start with 5 mirlitons, you'll end up with 10 halves (no extra charge for the math lesson!). However, stuff as much filling as you can in them even if you don't have enough for all 10 halves. I usually end up with 8 or 9.
If you don't have Creole tomatoes, use any ripe tomato-home grown are the best. The important part is to use ripe tomatoes, but if there are none available, canned diced tomatoes will work perfectly!
The easy way to peel and seed the tomatoes is to parboil them. Cut a shallow cross with a very sharp knife on the top, crisscrossing the stem. Bring about 10 cups of water to a heavy boil. Working with one or two tomatoes at a time, place them in the boiling water. Boil them for about three minutes after the water returns to a boil. (placing the cover over the pot will help bring the water back to a boil quicker). Remove the tomatoes immediately into an ice bath (a large bowl filled with ice and cold water). This will stop the cooking process and make them easy to peel. Let them sit in the ice bath about 10 minutes. When you remove them, grab a piece of the curling skin between your thumb and the flat of a knife blade and pull. Continue until the entire tomato has been peeled. To get the seeds out, slice in half or threes across the tomato's equator and scoop the seeds out with your fingers or a small spoon. Sometimes you can squeeze the seeds out. Its OK if you don't get every single seed out. Next, chop the peeled tomatoes and they are ready for use.
Some commercial creole seasonings have a lot of salt, so make sure you taste the filling before you add more salt to it.