I don't care much for eggplant, but I found this recipe for garlic mashed potatoes with eggplant to be an ideal way to consume it. It actually improves on the usual mashed potatoes. This recipe is moist with no butter, milk, or gravy required. You can add more garlic if you like, I usually do. Also, the bacon is delicious, but the recipe works without it.
For a deeper, sweeter garlic flavor, consider roasting the garlic cloves alongside the eggplant instead of boiling them. This caramelization intensifies their aroma and mellows their pungency. Ensure the eggplant is extremely tender after roasting; this is crucial for achieving a smooth, integrated texture in the mash. The bacon drippings are vital for the savory depth; for a vegetarian adaptation, use a high-quality olive oil or vegan butter to sauté the onions and add a pinch of smoked paprika for umami. Always season generously with salt and freshly cracked black pepper, tasting and adjusting, as potatoes absorb a significant amount of seasoning.