Eggplant Rollatini

Name: Eggplant Rollatini
Ingredients: 4 medium eggplants; Salt and pepper; ¼ cup olive oil; 1 10-oz. box frozen chopped spinach, thawed, squeezed dry; 3 cups part-skim ricotta; 3 cloves garlic, minced; 2 large eggs, beaten; 1 ½ cups shredded part-skim mozzarella; ¾ cup grated Parmesan; 1 24-oz. jar marinara sauce