This was delicious, in fact, it was so delicious I made it twice in one week. I'd suggest using a mandolin for quick slicing! It will save oodles of time!
1 Medium Yellow Onion
2 Cloves Garlic, Minced
1 Tbsp olive oil
1 medium zucchini
1 medium yellow squash
1 medium potato
1 medium tomato
1 tsp dried thyme
to taste salt & pepper
1 cup shredded Italian cheese
Preheat the oven to 400ºF. Finely dice the onion and mince the garlic. Sautê the onion and garlic with olive oil over medium heat until the onions are soft and transparent (about 5 minutes).
While the onion and garlic are sautéing, thinly slice the remaining vegetables. Make sure the potatoes are very thin so that they soften quickly while in the oven.
Coat the inside of an 8x8" casserole dish with non-stick spray. Spread the sautéed onion and garlic in the bottom of the dish. Arrange the other sliced vegetables, stacked vertically like dominos, in an alternating pattern. Season the top of the vegetables generaously with salt, pepper, and dried thyme.
Cover the dish with foil and bake in the preheated oven for 30 minutes. Remove the foil and top with the shredded cheese. Bake for an additional 15-20 minutes, or until the cheese is golden brown.