INGREDIENTS
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3 medium zucchini (about 1 lb.), cut lengthwise into ¼-inch-thick planks
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3 medium yellow squash (about 1 lb.), cut lengthwise into ¼-inch-thick planks
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2 Tbsp. olive oil
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1 tsp. kosher salt, divided
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¾ tsp. black pepper, divided
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3 ears fresh yellow corn, husk removed
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½ cup Duke’s Mayonnaise
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2 oz. Parmesan cheese, grated (about ½ cup)
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1 Tbsp. fresh lemon juice
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2 cups multicolored cherry tomatoes, halved
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¼ cup thinly sliced basil leaves, plus more leaves for garnish