Here's my summer squash Italian gratin recipe:
Summer Squash ( I used one big one, use as many as you need)
Potatoes ( I used one big one, use as many as you need)
Tomato Sauce ( I used a half a can of diced tomatoes)
Salt and pepper
Set the oven to 400.
You will need a casserole dish, slice the potato and squash in thin slices. Make a layer with the potatoes and squash (see picture). Season with salt and pepper to taste, add the tomato sauce, then the fresh mozzarella. Make another layer of potatoes and squash and repeat the process of sauce and cheese. Top off with potatoes and squash and season with salt and pepper.
Put the dish in the oven covered with aluminum foil for 30 minutes. Uncover and let it sit for another 15 minutes.