This Gluten Free Macaroni and Cheese is perfect when you are craving comfort food! It is an easy make ahead casserole your family will ask for time and again.
Melt butter in a saucepan over medium heat. Add flour and cook for two to three minutes, stirring frequently. Add milk and cook until thickens, about four minutes. Turn heat to low and add cheddar cheese. Cook until cheese melts, stirring occasionally. Stir in mustard, sea salt and pepper.
Remove from heat and stir in cooked pasta. Place in a medium baking dish and top with breadcrumbs.