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1
Preheat the oven to 350 degrees.
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2
Oil a heavy lidded casserole or Dutch oven.
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3
Heat 1 tablespoon of the olive oil over medium heat in a medium skillet and add the onion.
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4
Cook, stirring often, until tender, about 5 minutes, and stir in the garlic.
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5
Cook, stirring, until fragrant, 30 seconds to a minute.
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6
Stir in the tomatoes and salt and pepper to taste.
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7
Bring to a simmer and cook, stirring often, for 10 to 15 minutes, until the tomatoes have cooked down slightly and smell fragrant.
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8
Meanwhile, steam the chard for 2 to 3 minutes, until just wilted.
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9
Rinse briefly with cold water, squeeze out excess water, and chop coarsely.
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10
Place a spoonful of the tomato sauce in the bottom of the casserole.
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11
Season the potato slices with salt and pepper and arrange in a layer in the bottom of the casserole.
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12
In a large bowl toss together the chard, salt and pepper, and parsley.
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13
Lay half of this mixture over the potatoes.
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14
Season the fish fillets with salt and pepper and lay on top of the chard.
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15
Pour half the tomato sauce over the fish.
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16
Top with the remaining chard mixture and pour on the remaining tomato sauce.
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17
Pour in the wine and drizzle on the remaining olive oil.
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18
Cover tightly and place in the oven.
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19
Bake 1 hour, until the potatoes are tender.
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20
Serve hot or warm.