Grilled Garden Salad

Name: Grilled Garden Salad
Ingredients: 1 small eggplant, cut into 1/4-inch rounds; 1 pound asparagus, trimmed; 3 tomatoes, halved; 5 pattypan or baby summer squashes, halved if large; 2 heads radicchio, quartered; 1 medium red onion, cut into 1/2-inch rings; 1 red bell pepper, quartered, seeds and ribs removed; 1 yellow bell pepper, quartered, seeds and ribs removed; 1 portobello mushroom cap, cut into 1/2-inch slices; 1/2 cup extra-virgin olive oil, for brushing; Coarse salt and freshly ground pepper, to taste; 1 teaspoon fresh lemon juice; 1 1/2 teaspoons fresh thyme leaves