Tired of dinner decisions? Enjoy a 14 day trial to our meal plan service, voted #1 by Lifehacker, and reduce your mental load today.

Tuna Noodle Casserole with Peas
and mixed greens salad

Active: 50 Total: 70

We always get requests from our community for more casseroles, and it doesn't get more classic than this one with tuna and peas. The classic version of this casserole is made with a can of cream of mushroom soup, but our lightened up version gets a similar result using fresh mushrooms and onions in a creamy sauce.
Smarts: Be sure to take your time when cooking the mushrooms and onions - the longer they cook, the more flavor they will develop.

Tags

Ingredients

Metric
Servings:
4
Tuna Noodle Casserole:
  • Egg noodles - 8 oz (sub any fun small pasta shape)
  • Cheese, parmesan - 1/4 cup + 1/4 cup, grated
  • Onions, medium - 1/2, diced
  • Mushrooms, any button - 8 oz, chopped (look for pre-chopped to save time)
  • Peas, frozen or canned - 1 1/2 cups
  • Tuna, canned (5 oz / 142 g) - 2 cans, drained (look for Spanish or Italian varieties packed in olive oil )
  • Butter - 3 Tbsp
  • Flour, all-purpose - 3 Tbsp
  • Salt - 1/2 tsp
  • Black pepper - 1/4 tsp
  • Milk - 1 1/2 cups
  • Lemon zest - 1 tsp
Mixed Greens Salad:
  • Vinegar, balsamic - 1 Tbsp
  • Mustard, Dijon - 1 tsp
  • Maple syrup - 1/2 tsp
  • Oil, olive - 2 Tbsp
  • Mixed greens - 5 oz

Nutrition Facts

Amount Per Serving
Just a moment...
% Daily Value
Just a moment...
Just a moment...
Just a moment...
Just a moment...
Just a moment...
Just a moment...
Just a moment...
Just a moment...
Just a moment...

Increase your nutrition smarts

Prep

  1. Noodles - (If prepping right before cooking, get oven heating first.) Boil according to package directions. If prepping ahead, toss with some oil to help prevent sticking. (Can be done up to 5 days ahead)

  2. Cheese / Onions - Prep as directed. Store separately. (Can be done up to 5 days ahead)

  3. Mushrooms (if not pre-chopped) - Prep as directed. (Can be done up to 3 days ahead)

  4. Peas - Defrost if using frozen. Drain if using canned.

  5. Tuna - Drain cans of tuna.

Unlock this meal along with hundreds of smart meal plans and never stress about "What's for dinner?" again

Try for free
Learn More

Make

  1. Heat oven to 400F / 204C.

  2. Spray a square baker with nonstick cooking spray or brush with some oil. (Note: a square baker works well for 4 servings so adjust if customizing. For any number of servings, you can use any size or shape of baking dish as long as it will comfortably hold all of the casserole.)

  3. Melt butter in a large saucepan or Dutch oven over medium heat. When butter is melted, add mushrooms and onions and cook until deep golden brown and very tender, 9 to 12 minutes. 

  4. Sprinkle flour, salt, and pepper over mushroom-onion mixture and stir until no dry spots remain. 

  5. Slowly pour milk over top while whisking. Bring to a simmer. Simmer until sauce thickens slightly, 4 to 5 minutes.

  6. Remove sauce from heat and fold in first portion of cheese, lemon zest, noodles, peas, and tuna.

  7. Transfer into prepared baking dish. Sprinkle second portion of cheese over top.

  8. Bake for 20 minutes to let flavors come together. (Note: If you'd like to get the top crisp and golden, turn on the broiler in the last few minutes.) 

  9. While casserole bakes, in a large mixing bowl whisk together vinegar, mustard, maple syrup, and olive oil. Add greens on top, but wait to toss until just before serving.

  10. Season the top of the salad with some black pepper if you'd like.

  11. Serve casserole with salad on the side. Enjoy!

Nutrition Facts

Amount Per Serving
Just a moment...
% Daily Value
Just a moment...
Just a moment...
Just a moment...
Just a moment...
Just a moment...
Just a moment...
Just a moment...
Just a moment...
Just a moment...

Increase your nutrition smarts


Reviews

Ratings

Original (50)
Gluten-free (5)
Paleo (2)
Vegetarian (6)

Most Helpful

Added some dried thyme for a little bit more flavor. Also mixed in some panko with the parmesan topping and turned on the broiler the last few min of cooking. One of our recent favorites!

By: Julie
Posted: Nov 18, 2021
Diet: Vegetarian
1 Helpful

31 reviews

We loved the simplicity of this casserole and the lack of canned soup. Thanks!

By: Nancy
Posted: Nov 24, 2021
Diet: Original
0 Helpful

Nice and simple.

By: Talia
Posted: Nov 23, 2021
Diet: Original
0 Helpful

Really good version of a nostalgic classic! Love the flavor contrast the lemon peel brings. (Added a little garlic and onion powder, and mixed panko with the cheese topping like some other reviewers, which I highly reccommend- the crunchy top makes it taste exactly like the childhood favorite. :)

By: Amy
Posted: Nov 20, 2021
Diet: Original
0 Helpful

Added some dried thyme for a little bit more flavor. Also mixed in some panko with the parmesan topping and turned on the broiler the last few min of cooking. One of our recent favorites!

By: Julie
Posted: Nov 18, 2021
Diet: Vegetarian
1 Helpful

Wow, the lemon zest is magic in this. Very good tuna casserole.

By: andrea
Posted: Nov 03, 2021
Diet: Original
0 Helpful

Our kids really loved this.

By: Jenny
Posted: Oct 28, 2021
Diet: Original
0 Helpful