1. Preheat the oven to 375° F.
2. Peel and slice the onions in ½ and then slice into ½ moon slices about ¼ inch thick.
3. Slice the peppers into ¼ thick strips.
4. In a large sauté pan over medium heat, add the ¼ cup of olive oil. Add the onions and peppers and cook until soft, about 10-15 minutes. Add the garlic and cook 1-2 minutes more. Season with salt and pepper. Set aside.
5. Using a mandoline or chef’s knife, slice the eggplant, zucchini, yellow squash, and tomatoes into ¼ inch rounds. Set aside.
6. In the bottom of a 9”x12” baking dish, spread out the onion /pepper mixture. Layer the eggplant, zucchini, yellow squash, and tomatoes on top of the onion/pepper mixture. Alternate and overlap the slices as you go, making 1 layer. You may have extra slices. Reserve them for another use.
7. Drizzle the 2 tablespoons of olive oil on top of the vegetables. Season with salt and pepper. Sprinkle the thyme on top.
8. Cover the baking dish with aluminum foil. Bake for 40-45 minutes until the vegetables are soft.
9. Remove the foil and cook an additional 35 minutes until the vegetables are cooked and slightly brown. If you have not achieved the desired brownness, place under the broiler for 3-5 minutes.
10. Remove from oven and sprinkle the basil on top. Serve warm or room temperature.
TIPS & TRICKS
• You can substitute red onion for yellow. You can use red, yellow, or orange peppers too.
• Try to find eggplants and squash that are the same diameter, so that they layer nicely. You will have the smaller end pieces left over. I chop them up, sauté in a little olive oil, and add to scrambled eggs.
• This is a great dish for entertaining because you can prepare the dish till step #7 the day ahead. Then cook it earlier in the day. It is best serve warm.