This isn't really a casserole. There's no baking, and there really isn't even a recipe - but it tastes just like tuna casserole. Super yummy! :)
1/2 cup brown rice, cooked
1/2 can tuna
1 TBS Mayo (I use the kind with olive oil)celery, sliced, optional
Well, just combine everything together and enjoy! I make a big batch of brown rice, and store it in the refrigerator. And I save the other half can of tuna also, so I can make it the next day. I really like it warm, so I just throw it all in the microwave for a few seconds if it's been in the refrigerator.
*Update 2/25/15* - I tried a new variation of this today. Same amount of tuna and brown rice, but add in 1/2 of an avocado instead of the mayo. Soooo yummy! My new favorite lunch! :)
That's it - enjoy!