INGREDIENTS
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1 tablespoon extra-virgin olive oil, plus 2 teaspoons for drizzling
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4 cloves garlic, chopped
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1/2 teaspoon crushed red pepper, or to taste
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2 14-ounce cans no-salt-added diced tomatoes, drained
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1/2 teaspoon dried oregano
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1 pound peeled cooked shrimp, (31-35 per pound; thawed if frozen), tails removed if desired
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6 cups thinly sliced escarole (about 1 small head; see Note) or spinach
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1 16-ounce tube prepared plain polenta, sliced into 8 rounds
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8 oil-cured olives, pitted and chopped (optional