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Gluten + Dairy-Free Tuna Noodle Casserole

  • Author: Lauren
  • Prep Time: 20 minutes
  • Cook Time: 15 minutes
  • Total Time: 35 minutes
  • Yield: 8 1x
  • Category: dinner
  • Method: oven
  • Cuisine: casserole
  • Diet: Gluten Free


This gluten + dairy-free tuna noodle casserole is so easy to make! It is the perfect weeknight dinner to whip up & have the leftovers for a quick & easy lunch the next day! It is dairy-free, gluten-free, & absolutely delicious!


  • 2 tbsp avocado or extra-virgin olive oil (or butter or vegan butter)
  • 1/2 red onion, roughly chopped
  • 4 garlic cloves, minced
  • 1 + 1/2 cups mushrooms, diced
  • 1 tsp pink salt
  • Black pepper, to tasteĀ 
  • 2 tbsp fresh thyme or 2 tsp dried thyme
  • 2 tbsp fresh parsley or 2 tsp dried parsley
  • 1 tsp onion powder, optional*
  • 1 tsp garlic powder, optional*
  • 1 tbsp dijon mustard, optional*
  • 1 cup milk of choice (I used unsweetened cashew milk)
  • 1 cup broth (chicken or vegetable)
  • 2 cups broccoli florets, fresh or frozen
  • 1 cup peas, frozen
  • 2 cans of tuna (170 g per can)
  • 1 package of pasta (I used this chickpea pasta for added fibre & protein), prepared as indicated on package

Topping (optional)*

  • shredded cheese (dairy-free if needed), I recommend mozzarella or parmesan
  • gluten-free breadcrumbs


  1. Over high heat in a large saucepan add the oil to the pan with the onion, garlic, & mushrooms. Saute for 3-5 minutes until the veggies are soft & fragrant.
  2. Add this mixture to a blender with the broth, milk & spices. Blend until smooth & creamy.
  3. Place this mixture back on the stovetop on med/high & add the frozen broccoli, peas, & canned tuna allowing the veggies for simmer for 10 minutes.
  4. Add this mixture to a casserole dish & mix in your prepared pasta of choice.
  5. Top with cheese (use dairy-free if needed) and gluten-free breadcrumbs, if desired.
  6. Bake at 400 F for 15 minutes until the top is golden brown (if using the cheese & breadcrumbs)**.
  7. Serve & enjoy!


**If you are not using the cheese & breadcrumbs you can simply mix the heated sauce into the prepared pasta & enjoy, as is.

Keywords: tuna, noodle, dairy free