Cup of Yum
1. Preheat oven to 400-degrees. Prepare cream sauce (see instructions below) and set aside, keeping warm. Spray a 9x13 baking dish with cooking spray. Pat fish dry with a paper towel if needed and place cod fillets in the dish. Sprinkle with salt. 
2. Combine melted butter and garlic and brush over fillets, reserving any leftover butter mixture. 
3. Sprinkle seasoned breadcrumbs over fillets and pour remaining butter mixture over the top.
4. Pour cream sauce in the spaces between the cod fillets so it fills up the baking dish and just the tops of the fillets are visible. 
5. Place in the preheated oven and bake for 25-30 minutes or until the cream sauce starts bubbling. When the sauce starts bubbling up, set oven to "broil" and broil for about 3-5 minutes or until the fillets start to turn golden brown. Keep a CLOSE eye on it to make sure it doesn't start to burn. The internal temperature of the fish should be 145-degrees F and should flake easily when pulled apart with a fork.
6. Remove from oven and serve with potatoes, rice, or vegetables. 

For the cream sauce:

Cup of Yum
1. Melt butter in a medium-sized sauce pan over medium heat.
2. Slowly add the cornstarch and stir for about 1 minute. 
3. While whisking constantly, slowly add whipping cream and milk until well combined. Stir in Parmesan cheese. 
4. Reduce heat to low and whisk occasionally for about 10 minutes until sauce becomes rich and creamy, adding more milk, if needed. You want it to be the consistency of a thin gravy. Season with salt and pepper, to taste.