Using the best ingredients, and keeping it simple. Chef Christine Cushing focuses on her kitchen philosophies of fun, adventure and experimentation in her new book. In her lively and informal style, she introduces an array of recipes that combine adventurous and sometimes exotic ingredients with simple, quick instructions for preparation. Health is always key. Cushing even takes a trip to a supermarket to illustrate the process of discovering new ingredients. Customary fare takes on new heights with her tips for picking the freshest fish, produce, poultry and meat available on a given day. A sampling of the sumptuous recipes: Smoked paprika aioli with grilled asparagus Arugula, spinach and feta salad with caramelized shallots Moroccan-style quick shrimp Stir-fried chicken and Chinese greens Pan-roasted halibut with shallots and grape tomatoes Lamb chops with herbs de Provence and Dijon mustard Lime-scented sushi rice Israeli couscous with fresh mint Spicy chive corn cakes Triple banana coconut loaf. Pure Food introduces exquisite and nutritious dishes. In no time, Christine Cushing shows each step along the way -- from grocery shopping to garnishes. (20071130)