I keep giving summer squashes, both classic zucchinis and the little lemon squash, to our neighbors, but we are still feeling slightly overwhelmed. Yesterday when I offered a neighbor some, she said she take them gladly because they are so delicious. The word she used to described the courgettes was fondantes — "meltingly tender and good" might convey the idea. The dictionary also gives the word "luscious" as an equivalent.
Anyway, the one I cooked the other day was like that. It was only one zucchini, but it had grown large. I cut it up anyway, sliced it thinly, and salted the slices that I had put into a colander to let them release some water. I laid the slices out in a 32 cm (12 inch) diameter baking dish and they were about 4 deep. This is an idea based on a recipe I found on this French cooking site.
Then I sliced up a good number of smallish tomatoes from the garden and arranged them in a layer over the zuke slices. You could add a layer of cooked meat — sliced chicken or turkey, bacon, ham, for example, over the zucchini slices before putting the tomatoes on. I made a custard of milk, cream, and eggs seasoned with salt, pepper, oregano, and thyme. I poured the liquid mixture over the tomatoes and zukes. It was just enough to cover the zucchini slices, leaving the tomato slices visible.
After the gratin — that's the French term — cooked in the oven at 180ºC / 350ºF for 30 or 40 minutes, I turned off the oven and let it sit there for another hour or so, hoping that the zucchini slices would be cooked through. I was glad to see that the tomatoes kept their shape and didn't just turn into sauce. (I didn't decide to take photos until after the first cooking.)
Finally, I spread a layer of grated cheese over the whole dish, drizzled some olive oil over it, and put the dish back in the oven at low temperature, say 150ºF (300ºF) just to let the cheese melt. You could make a case for putting the dish under the broiler to brown the cheese, but I didn't do that. I wanted it luscious, not crispy. Maybe crispy is how I'll prepare the leftovers that we'll have for lunch today. The courgette slices are cooked, by the way, but not over-cooked, so they have a nice texture.