These leafy greens come together nicely in this super cheesy casserole!
Melt 4 tbsp of butter in medium saucepan over medium heat. Whisk in flour until smooth. Cook for one minute stirring constantly.
Slowly whisk in milk, nutmeg, and heavy cream. Add onion and garlic then bring to a simmer, stirring quite often to prevent clumping and scorching. Simmer on low heat while you prepare the kale.