1 tablespoon extra-virgin olive oil
2 pounds tomatoes, seeded and coarsely chopped (about 3 large)
1/2 teaspoon kosher salt, divided
4 garlic cloves, crushed and divided
12 (1/4-inch-thick) lengthwise slices eggplant (about 2 medium)
1/4 teaspoon freshly ground black pepper
Cooking spray
2 tablespoons pine nuts, lightly toasted
1 ounce whole-wheat French bread, toasted and torn into pieces
8 ounces part-skim ricotta cheese
1 teaspoon grated lemon rind
1 large egg
3/4 cup chopped fresh basil leaves, divided
2 ounces Parmigiano-Reggiano cheese, grated (about 1/2 cup) and divided