Ingredients:
squash (zucchini/summer squash is our usual mix)
onion
garlic
tomatoes (canned)
tomato puree
Topping ingredients:
eggs
milk
crème fraîche (sour cream works, too)
feta
nutmeg
The first group of ingredients are cooked in the pan and then topped with the latter group prior to baking. This is a really top-notch veggie dinner.
Source: Family Organic Cookbook, p. 108