Baked Mac and Cheese with Hidden Cauliflower Recipe | Valerie Bertinelli | Food Network

Ingredients

• Cooking spray
• 1 pound elbow macaroni
• Kosher salt
• 1 small head cauliflower, cored
• 4 tablespoons unsalted butter
• 1/2 medium onion, finely chopped
• 5 tablespoons all-purpose flour
• 4 cups whole milk
• 2 cups shredded mild cheddar cheese (about 8 ounces)
• 2 cups shredded Colby Jack cheese (about 8 ounces)
• 3 tablespoons creamy French onion dip
• 1/4 teaspoon cayenne pepper
• 2 cups crushed sour cream-and-cheddar potato chips