Whipped Feta with Roasted Tomatoes

Name: Whipped Feta with Roasted Tomatoes
Ingredients: 1 pint cherry tomatoes (about 2 cups ); 2 medium cloves garlic , unpeeled; 4 tablespoons extra-virgin olive oil , divided; 6 ounces feta cheese , crumbled ( 1 1/2 cups ); 3 tablespoons reduced-fat cream cheese , softened; 1/2 teaspoon onion powder; 1 tablespoon lemon juice , plus lemon zest for garnish; 1 tablespoon cold water; 2 teaspoons balsamic glaze; 1/4 teaspoon ground pepper; 1 tablespoon fresh basil leaves; 16 (1/4-oz.) slices whole-wheat baguette , toasted