Grilled Artichoke-Mushroom Pizza

Ingredients

• 1 prebaked 12-inch pizza crust
• 1/2 teaspoon olive oil
• 2/3 cup tomato and basil spaghetti sauce
• 2 plum tomatoes, sliced
• 1/4 cup sliced fresh mushrooms
• 1/4 cup water-packed artichoke hearts, rinsed, drained and chopped
• 2 tablespoons sliced ripe olives, optional
• 1 cup shredded part-skim mozzarella cheese
• 1/2 cup crumbled tomato and basil feta cheese
• 1-1/2 teaspoons minced fresh basil or 1/2 teaspoon dried basil
• 1-1/2 teaspoons minced fresh rosemary or 1/2 teaspoon dried rosemary, crushed
• 1-1/2 teaspoons minced chives