Tuna Bread Casserole Recipe -- Gluten Free, Frugal, Easy

My house is predominantly gluten free. My kids decided that they don't like to eat the gluten free bread that I make from scratch, so I go to a store where they sell relatively frugal gluten free buns and stock up each time I'm in the area. Unfortunately, because I don't have a spare freezer and I have other things in my freezer, I'm limited with how much bread I can buy at once so what I have is precious to me.
Imagine, then, my consternation when the bread that I buy gets left out to get stale, crumbled into unusable pieces, or otherwise makes it unable to be used for sandwiches and then likely to get wasted.

The problem with things like this is so many recipes of what to do with leftover bread need them to be sliced, like french toast, or they're completely crumbled into bread crumbs, which I don't use much in my house so its a waste.

I was trying to figure out what to do with my crumbled bread, then remembered the tuna I bought cheaply, and decided to make up a recipe, a tuna casserole, using bread chunks instead of noodles.

And it came out amazingly. My children had over a friend who is a picky eater and he even loved this. I definitely will be making this again. Even if its just about the least photogenic meal ever.

Tuna Bread Casserole Recipe -- Gluten Free, Frugal, Easy

1 9 x 13 pan filled with bread scraps (gluten free to keep this that way, otherwise whatever you have)
2 to 3 cans tuna
1 1/2 cups cheese
5 cups broth or water plus 2 tablespoons soy sauce, 1 teaspoon garlic powder, 1 teaspoon salt
1 can mushrooms (optional)
2 cups frozen or canned green beans (optional)


1. Fill a 9 x 13 pan with bread scraps. Broken bread, stale bread, ends of bread, or bread that didn't taste so great.

2. Cut or break the bread into smallish cubes or chunks.

3. Strain and add the tuna. If using green beans or mushrooms, add them to the mixture.

4. Break up your cheese and add to the mixture. 

5. If using broth, pour it on. Otherwise mix water, soy sauce, garlic powder and salt together, and pour over the mixture.

6. If desired, top with more cheese.

7. Mix well, and bake uncovered at 350 until all the cheese is melted, and if desired, for the top to get toasty. This can be anywhere from 30 to 45 minutes, depending on preference.


What is your favorite thing to do with leftover, stale, or broken bread? Does this look like a recipe you'd try?

Penniless Parenting

Mommy, wife, writer, baker, chef, crafter, sewer, teacher, babysitter, cleaning lady, penny pincher, frugal gal


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  1. You didn't specify when in the recipe to add the tuna?

  2. You're so ingenious! And good for you! This reminds me of a take on tuna casserole with peas and cream of mushroom soup from the 70's with crushed potato chips on top. I suppose you could try this with peas or even mixed veggies instead of green beans and maybe a bit of heavy cream or milk/almond milk etc in place of the water or broth if you wanted to change it up.

  3. I usually make croutons or panzanella if the bread can't be used for french toast.

  4. My inlaws make 'bread pudding' : lots of stale bread crumbled, hot milk (non dairy milk is fine), eggs and sugar. And usually some kind of fun stuff like raisins or chocolate chunks, almonds (what you have and that sounds good !). It is a good way to use a tooooon of stale bread 😊

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