Disney's haute-cuisine hit "Ratatouille" couldn't come at a better time.Not because it's a family-pleasing movie in summer. The timing is perfect because it's eggplant season. And tomato season. And zucchini/bell pepper/onion and garlic season.Put together eggplants, tomatoes, zucchini, bell pepper, onions, garlic and olive oil, and you've got ratatouille.