How to Make It
Over medium-low heat, add the oil to a large skillet with the onion, garlic, and bay leaf, stirring occasionally, until the onion has softened.
Add the eggplant and cook, stirring occasionally, for 8 minutes or until the eggplant has softened. Stir in the zucchini, red bell pepper, tomatoes, and 1 teaspoon of the salt, and cook over medium heat, stirring occasionally, for 5 to 7 minutes or until the vegetables are tender. Stir in basil and a few grinds of fresh pepper to taste.
Cook the ziti according to label directions. Drain and then toss with ricotta cheese, eggs, olive oil, Parmesan, and the remaining teaspoon of salt.
Spoon half the ziti into a lightly greased 4-quart casserole. Top with the ratatouille and then the remaining ziti. Sprinkle with Cheddar. Cover and bake in a preheated 350° F oven for 20 minutes. Uncover and cook 10 minutes more.