While eggplant is baking, place potatoes and garlic cloves into a large pot and cover with lightly-salted water. Bring to a boil, reduce heat to medium-low, and simmer until tender, about 20 minutes. Drain. Place bacon in a large skillet and cook over medium-high heat, turning occasionally, until evenly browned, about 10 minutes. Drain bacon slices on paper towels and retain 1 tablespoon drippings in the skillet.