Layered Potato Cauliflower Casserole Recipe

• 1 small cauliflower
• 1 1/2 lb. potatoes
• 1 C. plain Greek yogurt
• 1/4 C. canned milk
• 1/8 tsp. freshly grated nutmeg
• 1/4 tsp. salt
• 1/8 tsp. pepper
• 1/4 tsp. onion powder
• 1/4 tsp. celery salt
• 2 cloves garlic, minced
• 1 tsp. Dijon mustard
• 1/2 tsp. Frank's Red Hot sauce
• 6 Tb. grated Parmesan cheese
• Topping
• 1/2 C. course bread crumbs
• 2 tsp. olive oil
• 2 Tb. Parmesan cheese

Directions