Macaroni and Cheese With Cauliflower Recipe

Ingredients

• 12 ounces multigrain elbow macaroni
• 1 head cauliflower, roughly chopped
• 4 slices multigrain bread, torn
• 1/2 cup fresh flat-leaf parsley, chopped
• 3 tablespoons olive oil
• kosher salt
• black pepper
• 1 onion, finely chopped
• 1 1/2 cups grated extra-sharp Cheddar (6 ounces)
• 1 1/2 cups reduced-fat sour cream
• 1/2 cup 1 percent milk
• 1 tablespoon Dijon mustard