French Roasted Vegetable Sandwiches^

Yield:	8 servings
Categories:	Appetizers, Sandwiches, Snacks, Summer, Lunches

1	sm	Eggplant; peeled and sliced thick
1		Sweet red pepper; quartered
1	md	Tomato; halved
1	sm	Onion; sliced thick
2	tb	Olive oil
2	ts	Minced garlic
1/2	ts	Crushed dried rosemary
1		Round loaf Italian bread; (8" diameter)
2	tb	Nonfat plain yogurt
3	tb	Balsamic vinegar
2	ts	Grated Parmesan cheese
1/2	c	Tightly packed spinach leaves