Green Beans with Meyer Lemon Vinaigrette & Parmesan Breadcrumbs

1/2 cup fresh breadcrumbs
1/2 cup plus 2 Tbs. extra-virgin olive oil
Kosher salt and freshly ground black pepper
1/2 cup freshly grated Parmigiano-Reggiano
Finely grated zest of one Meyer lemon
1/4 cup fresh Meyer lemon juice
1/4 cup heavy cream
2 lb. fresh green beans, trimmed

Heat the oven to 350°F. In a small bowl, toss the breadcrumbs with 2 Tbs. of the oil, a generous pinch of salt, and a few grinds of pepper. Arrange in a single layer on a rimmed baking sheet and toast until golden brown, about 10 minutes. Let cool and then transfer to a bowl and mix in the cheese.
In a medium bowl, whisk the lemon zest and juice, cream, 1/2 tsp. salt, and 1/4 tsp. pepper. Slowly whisk in the remaining 1/2 cup oil.
Bring a large pot of salted water to a boil over high heat. Cook the green beans in the boiling water until tender, 4 to 6 minutes; drain well. Toss the beans with the vinaigrette. Taste and adjust the seasoning if necessary. Transfer the beans to a serving platter and sprinkle with the breadcrumbs.