Macaroni And Cheese With Greek Yogurt And Spinach

Set an oven rack to the top position and preheat to 400 degrees F (200 degrees C). Line a baking pan with aluminum foil. Coat a 9x13-inch baking dish with cooking spray.

Bring a large pot of lightly salted water to a boil. Cook elbow macaroni in the boiling water, stirring occasionally, until tender yet firm to the bite, about 8 minutes. Drain macaroni, reserving 2 1/2 cups pasta water. Pour macaroni back into the pot.

While the macaroni is cooking, place prosciutto on the prepared baking pan.

Cook prosciutto on the top rack of the preheated oven until dry and crispy, but not burnt, 6 to 8 minutes. Remove from the oven and chop roughly. Lower the oven to 350 degrees F (175 degrees C) and lower the rack to the middle position.

Melt butter in a saucepan over medium heat. Add flour and whisk for 1 minute. Add garlic powder, cumin, red pepper flakes, and pepper; cook for 1 minute more. Whisk in Greek yogurt and cook until heated through and bubbling, 2 to 3 minutes. Whisk in 1 1/2 cups of the reserved pasta water; cook for 2 to 3 minutes.

Add cream cheese and stir until melted. Add a generous 1/4 cup each of Gruyere and Cheddar cheeses, stirring until thoroughly melted; repeat until all cheese had been added and sauce is thick. Stir in as much of the remaining pasta water as necessary to reach desired consistency.

Stir spinach into the cooked macaroni. Add cheese sauce; stir until combined and macaroni is coated. Pour into the prepared baking pan and sprinkle prosciutto over top.

Bake in the preheated oven until edges are bubbling slightly, 15 to 20 minutes.