4 slices sourdough or ciabatta bread (torn into small pieces, about 1-1/2 cups)
2 tablespoons olive oil (divided)
1 cup minced fresh flat leaf parsley (divided)
4 large cloves garlic (peeled and finely minced, divided)
1 pound whole wheat spaghetti or linguine
1 pound Earthbound Farm Organic Broccolette (ends trimmed, cut into 2-inch lengths - see Note)
1/2 teaspoon chili pepper flakes (or to taste)
  grated zest of 2 lemons
1 cup grated Parmigiano Reggiano