Gluten-Free Grilled Cheese Casserole

NO DOUBT WE EAT A LOT OF GRILLED CHEESE SANDWICHES IN MY HOUSE. Grilled ham and cheddar on gluten-free  cinnamon-raisin bread. Grilled turkey, cranberry and jalapeno jack cheese on gluten-free  whole-grain bread.

And, of course, plain ol’ grilled cheese on gluten-free  white bread, which is the  all-time family fave.

After making so many sandwiches, I wanted to come up with a new twist. Enter the casserole. Why a casserole? You don’t have to babysit the stove and they’re self-contained in one cooking vessel, which makes for faster clean-up.

This is also a stress-free recipe: Go ahead and assemble the casserole the night before and bake it off the next day. It doesn’t get much better than that.

Gluten-Free Grilled Cheese Casserole

Yield: 6


5 tablespoons unsalted butter, at room temperature, for brushing

12 slices firm-textured gluten-free white bread, such as Rudi?s or Udi?s

10 ounces thinly-sliced yellow cheddar cheese

6 eggs, lightly beaten

1 ½ cups milk

2 tablespoons dijon mustard


  1. Arrange a rack in the center of the oven and preheat to 375º. Lightly brush a 9-by-13-inch pan with some of the butter. Layer 6 bread slices with the cheese and top with the remaining 6 bread slices. Brush the outsides of the sandwiches with the remaining butter and cut the sandwiches diagonally into quarters. Arrange the quarters point up in the prepared pan, fitting them snugly.
  2. In a bowl, whisk together the eggs, milk and mustard. Drizzle the custard on top of the casserole and let sit until absorbed, about 10 minutes (or cover and refrigerate overnight).
  3. Bake the casserole until bubbling and golden, about 35 minutes.


  1. This is very similar to a brunch recipe that I got many years ago, except using ham and swiss cheese. This is our traditional Christmas morning brunch (since it can be made the night before, and I pop it into the oven while we are opening gifts). This year I used a GF white bread (I had just gone on a GF diet) and the result was a resounding success and my family thought it the best ever, I think because of the GF bread (it is much heavier than regular white bread). Here is my recipe (and no one will know it is GF!):
    Hot Ham Sandwiches
    Butter (to spread on bread and pan)
    12 slices of GF white bread (butter both sides)
    8 oz. sliced ham
    8 oz. swiss cheese sliced
    3 cups milk
    6 eggs
    1 TBS dry mustard
    1 dash GF hot sauce
    1 dash GF Worchesteshire Sauce
    Butter flat 9 x 13 pan. Place 6 slices of bread in pan. Alternate ham and cheese and finish with bread. Beat eggs, add milk and seasonings and pour over bread and refrigerate over night. Bake 350 degrees for 1 hour or until firm.

  2. Looks like a fun weekend lunch!

  3. That looks more disgusting than the onion ring omelet.

    Stick with the likely inspiration for this dish: the classic ‘best of bridge, Christmas wife saver’ recipe it’s actually appetizing.

  4. Hi Sarah,

    Thanks for the comment! Not sure what you mean by the “best of bridge, Christmas wife saver. Care to share?

  5. What an interesting concept. I love grilled cheese. We will definitely have to try this. Thanks for the inspiration! 🙂

  6. I Love this idea! your family gets a more nutritious grilled cheese with this recipe. plus isn’t it healthier to bake than fry or saute? and there is enough to feed the whole family. Plus, you get to sit and eat with your family rather than be stuck at the stove making grilled cheese sandwiches. GREAT IDEA!! Thanks so much!

  7. Just made this for a quick lunch yesterday and it was yummy and satisfying. I added some chopped ham and bell peppers to it as my kids love ham and cheese sandwiches and the peppers added great color. Great recipe that is far from “disgusting” which by the way is an immature way to describe food unless you are 3 years old. Thanks Silvana 🙂

  8. Best of Bridge is a series of Canadian cookbooks, and their “wife saver” is one of the favourite recipes in the books. It’s online at: