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1
Preheat oven to 350 degrees F (175 degrees C). Generously coat the bottom of a 13x9-inch baking dish with 1 tablespoon olive oil.
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2
Season cut sides of tomatoes with salt and pepper.
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3
Heat olive oil in a skillet over medium heat. Arrange tomato halves into the skillet with the cut sides facing down. Reduce heat to medium-low, place a cover on the skillet, and cook tomatoes until warmed through, about 5 minutes.
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4
Pour water over the tomatoes, again cover the skillet, and continue cooking tomatoes until the skins begin to wrinkle and loosen from the flesh, about 5 minutes. Remove skins with tongs and discard. Mash tomatoes in the skillet until smooth.
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5
Reduce heat to low. Stir onion, bell pepper, celery, wine, tomato paste, parsley, basil, and garlic into the mashed tomatoes. Bring the mixture to a simmer and cook until the liquid reduces to about 2/3 its original volume, 10 to 15 minutes.
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6
Bake in preheated oven until the edges begin to brown, 25 to 30 minutes.
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7
Slice about 1/2 inch off each end of the eggplant; cut eggplant lengthwise into 6 equal slices. Lay each eggplant slice into the prepared baking dish; flip so both sides of each slice are coated in oil.
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8
Spoon tomato mixture in an even layer over the eggplant slices. Spread Gouda cheese over the tomato mixture in an even layer. Sprinkle Parmesan cheese evenly over the Gouda.
