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1
Combine vinegar and shallot in a bowl; set aside to soften shallot.
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2
Prepare an ice-water bath.
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3
Bring a pot of water to a boil.
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4
Add 1 teaspoons salt and green beans, and cook until bright green, about 2 minutes.
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5
Using a slotted spoon, transfer green beans to ice-water bath.
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6
Add zucchini to boiling water, and cook until tender, about 3 minutes.
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7
Transfer to ice-water bath.
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8
Let cool, then drain.
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9
Toss green beans zucchini, tomatoes, and cucumbers.
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10
in a large bowl.
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11
Add mustard, herbs, 1 teaspoons salt, and pepper to shallot mixture.
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12
Add 1/4 cup oil in a slow steady stream until emulsified.
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13
Pour vinaigrette over vegetables, and toss.
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14
Let stand at least 1 hour to allow the flavors to meld.
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15
(vegetables can be covered and refrigerated up to 2 days; bring to room temperature before serving.
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16
).
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17
Preheat oven to 350F Place bread on rimmed baking sheet.
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18
Drizzle with remaining tablespoon of oil, and toss.
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19
Toast, stirring occasionally, until golden brown, about 20 minutes.
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20
Add croutons to salad and toss.
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21
Let stand 1 hour before serving so that the croutons can soften.
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22
If you prefer yoru croutons crisp, add them to the salad just before serving.