3 leek three cheese quiche Recipes

sheet refrigerated pie dough for a 9-in. pie shell, butter, leeks (white and light green parts), thinly sliced and rinsed well, green onions, trimmed and thickly sliced, red onion , cut into thin half-moons, kosher salt, divided, half-and-half, flour, eggs, shredded sharp white cheddar cheese

refrigerated pie dough for a 9-inch pie (from a 15-oz package; not a preshaped frozen pie shell), leeks (about 3 medium; white and pale green parts only), unsalted butter, sliced smoked ham, gruyere, coarsely grated (1 cup), italian fontina, coarsely grated (1 cup), whole-milk mozzarella, coarsely grated (1 cup), eggs, freshly grated nutmeg, black pepper, creme fraiche (from two 8-oz containers)