This casserole is simple and delicious, and makes a perfect snack during a picnic (bento anyone?)—you should use it as a basic idea for a casserole, since the pasta sauce is the stable and the most important piece of the meal. It's also a very tweak-able recipe! :-)
Drinking yogurt is a terrific drink for autumn — it tastes fresh, contains probiotic bacteria and makes a great dessert or a quick snack, not only during autumn. But during this time of the year it is especially important to keep the natural defense high against viruses and bacteria, and yoghurt is a superb ally in that! Did I mention it tastes great? ;-)
This recipe came to life when I was left with no fresh milk after a short travel — I had only one mini-bottle of a drinkable probiotic yogurt and some condensed milk for coffee (sic!). But against all odds, it worked out!