1smallyellow squash(6 ounces, sliced 1/8th inch thick)
3ozlight Havarti cheese(shredded)
Preheat oven to 375F.
In a large non-stick skillet add olive oil and sauté onions and garlic 2-3 minutes. Add 1 tsp salt, black pepper, tomato sauce, red pepper flakes if using, bay leaf, thyme, basil, red and yellow bell pepper; sauté another 5-8 minutes on medium-low heat.
In a large nonstick grill pan, grill the zucchini and eggplant 2 to 3 minutes on each side.
Add 1 cup of the sauce to a casserole dish. Layer the eggplant, squash and the zucchini. Pour the remaining sauce over the top and top with the cheese. Cover with foil and bake 40 minutes.