Preheat oven to 350. Place chopped eggplant on a baking tray, sprinkle lightly with salt and let sit while the oven preheats. When the oven is hot, blot the eggplant lightly on both sides with paper towels and drizzle lightly with olive oil. Cover the tray with foil tightly and bake about 40 minutes or until the eggplant is tender. Remove from oven, remove foil, and set aside.
Meantime, in a large, deep skillet (or heavy soup pot), cook in the remaining oil the onions, peppers, and zucchini until they begin to soften, about 10 minutes. Add garlic, herbs, tomatoes, tomato paste, and sugar. Season with about 1/2 teaspoon of salt and 1/4 teaspoon of black pepper. Stir well, heat through and taste. Add crushed red pepper and taste again. Adjust seasoning if necessary.
Let simmer 15 -20 minutes over low heat. Add eggplant and warm through. Add some of the reserved tomato juice if the mixture becomes too thick and is sticking or if you’d like a looser consistency.
Serve as is (hot, warm or cold), with Parmesan, over pasta, beneath fish or chicken, or in an omelet. A big bowl of this and a hunk of bread folks can tear and dip into it is perfect August food.
Store tightly covered in fridge 2-3 days or freeze for 3-6 months, well-wrapped.